Question

Placenta and pericarp are both edible portions in
a. Apple
b. Banana
c. Tomato
d. Potato

Answer 1

It is a member of the genus Solanum within the family Solanaceae (also known as the nightshade family).
Placenta serves as a connection for ovary walls and provides nutrition to growing plants. Ovules in the plant's ovary are connected via funiculi. The area where funiculi attach to the plant is placenta.
Pericarp is the part of a fruit formed from the wall of ripened ovary surrounding seeds. It provides protection to the growing plant.

Complete answer:
In order to answer this question we need to have knowledge about the plant anatomy of the internal structure of fruit is known as fruit anatomy.

Fruits are fleshy seed-associated structures of a plant that are sweet or sour, and edible in the raw state resulting from the maturation of one or more flowers, and the gynoecium of the flower forms the part of the fruit.

They are commonly categorized as berries, drupes and pomes. Berries are many-seeded fruits composed of one carpel or syncarpous ovary. They are fleshy, but the exocarp ranges in texture: a soft, thin exocarp. Example- tomatoes.

Pericarp- The outer, edible layer formed from the ovary and surrounding the seeds is pericarp which is further divided into three layers- epicarp, mesocarp and endocarp.

Placenta- The arrangement of ovules inside the ovary is known as placentation. It is of following types:
- Basal: When placenta is found in mono, multi carpellary, syncarpous ovary it is known as basal placentation.
Ex: Helianthus.
- Parietal: It is common in multicarpellary syncarpous ovaries.
Ex: Cucumber
- Axile: In this type of arrangement carpels fuse and form septa making up a central axis on which ovules are arranged.
Ex: Tomato
- Free central: It is found in bicarpellary to multicarpellary syncarpous ovary and the ovules are arranged on the central axis.
Ex: Dianthus
- Marginal: It is common in monocarpellary unilocular ovaries where the placenta forms a rigid along the ventral side and ovules are accordingly arranged in the rows.
Ex: Pisum sativum

Therefore, the answer is c, tomato!

Additional information:
Family Solanaceae features in brief:
- It contains some of the most important food plants, such as potato, tomato, peppers, eggplant etc.
- Root: They have a branched tap root system.
- Inflorescence: Solitary axillary, umbellate cyme, or helicoid cyme.
- Flower: Bracteate/ebracteate, pedicellate, complete, pentamerous, hypogynous.
- Calyx: Sepals 5, gamosepalous, tubular/campanulate, valvate/imbricate, persistent, inferior.
- Corolla: Petals 5, gamopetalous, tubular/infundibuliform, valvate/imbricate aestivation.
- Androecium: Stamens 5, epipetalous, polyandrous, alternipetalous, anthers dithecous.
- Gynoecium: Bicarpellary, syncarpous, superior ovary, bilocular, unilocular, obliquely placed ovary, style simple.
- Fruit: A capsule or beery.
- Seed: Endospermic seeds.

Note: Tomato which is commonly known as vegetable is regarded as a fruit botanically due to low sugar content.
Atropa belladonna (a deadly nightshade) - Atropine alkaloid is obtained from the roots, which is used to dilate pupils of the eye.