Question

In a plant, the anther contains:
A) sepals
B) ovules
C) pistil
D) Pollen grains

Answer 1

A flower contains a stamen (male flower part) or pistil (female flower part), or both, as well as accessory parts such as sepals, petals, and nectar glands as a plant's reproductive part. The male reproductive organ is the stamen. A pollen sac (anther) and a long supporting filament make up this structure.

Complete answer:
A stamen is made up of two parts: a filament and an anther that contains microsporangia. Anthers are usually two-lobed and are attached to the filament at the base or in the middle of the anther. The connective tissue is a sterile tissue that runs between the lobes and is an extension of the filament that contains conducting strands.
Pollen is produced in this part of the stamen. It's a bilobed tetrasporangiate structure that's attached to the filament and is also a part of the stamen. A sepal is a component of the calyx, the flowering plant's outermost whorl. The outer parts of the flower (often green and leaf-like) that enclose a developing bud are known as sepals.
The pistil is the part of a flower that produces ovules. The pollen is produced by the anthers on the flowers, which are an important part of the flower's structure.
On long filaments, the anthers rise high from the flower's center.
The number of anthers on different flower species varies, but most have five to six anthers that circle the flower's center.
The filaments and anthers are referred to as the flower's stamen by botanists.
Anthers are grainy pods that range in color from light yellow to deep red and are found at the ends of filaments.

Thus, In a plant, the anther contains pollen grains.

Note: For successful pollination, angiosperm pollen must be transported to the stigma, the receptive surface of the carpel, of a compatible flower. The pollen grain (an immature microgametophyte) usually completes its development after arriving. It may produce two sperm nuclei after growing a pollen tube and going through mitosis.