Answer:
The correct answer will be option-B.
Step-by-step explanation:
A scientific method is a systematic approach to understand, answer and explain any natural event or phenomenon.
The steps are followed in a sequence which begins with making an observation, followed by asking a scientific question, doing background research, forming a hypothesis, test the hypothesis by performing experiments and suggest conclusions.
In the given question, the first method to perform is to ask a scientific question based on the observation which can be answered and tested.
Thus, Option-B is the correct answer.