Final answer:
A: it asks questions about natural world. Science is a distinctive way of gaining knowledge about the natural world that starts with a question and then tries to answer the question with evidence and logic.
Step-by-step explanation:
A: It asks questions about the natural world.
B: It asks questions that cannot be tested.
C: It is done by only one scientist at a time.
D: It uses opinions to make conclusions.
The correct answer is option A. Science is a distinctive way of gaining knowledge about the natural world that starts with a question and then tries to answer the question with evidence and logic. It involves asking questions about the natural world and using evidence to test and refine ideas. Option B is incorrect because science aims to ask questions that can be tested using evidence. Option C is incorrect because science is often done by teams of scientists collaborating and sharing their findings. Option D is incorrect because science uses evidence and logic, not opinions, to make conclusions.