Question

A series of steps designed to solve a problem and answer questions:
A. Scientific method
B. Observation
C. Experiment
D. Hypothesis

Answer 1

Observation is to perceive different phenomena and gather information from it, experiment is to practically examine the certain phenomena. A hypothesis is to predict that a certain phenomenon might occur while a scientific method is to gather all of this information and obtain the results of the phenomenon.

Complete answer:
Scientific method: A method of procedure that has characterized natural science consisting in systematic observations, measurements, and experiments, and the formulations, testing, and ramifications of hypotheses. Thus, scientific methods can contain all the other options which are observations, experiments and hypotheses. It is a series of steps designed to solve problems and answer questions.
Observation: Observation is the active acquisition of information or data through a primary source. In addition to this, observation could involve the perception and recording of data through the usage of scientific instruments.
Experiment: The definition of an experiment is a test or the act of trying out a new course or procedure of action. An experiment can be defined as to try out something new or to give testament to a theory.
Hypotheses: A hypothesis is a tentative claim about the relationship between two or more than two variables. It is a specific, testable prediction about what you expect to happen in a study and which is not proven yet.

Hence option A is the correct answer.

Note: Thinking of such ideas in terms of an example of gravity, then there is a possibility of gravity is a hypotheses, the falling of apple from a tree is an observation which Isaac Newton observed, the study of gathering different objects to fall under gravity is an observation, and the results is getting the mathematical formula. The combination of all of these is a scientific method.