Question

why must a hypothesis be falsifiable?
to prevent others from testing it

to make it easier to understand

to allow for the possibility of refutation

Explanation:

A falsifiable hypothesis means there are observable conditions that could show it's wrong. The first option is wrong as a hypothesis should be testable. The second is wrong as falsifiability isn't about ease of understanding. The third is correct because falsifiability allows for the possibility that evidence could refute (disprove) the hypothesis, which is key in scientific inquiry to test and refine knowledge.

Answer:

C. to allow for the possibility of refutation (Note: In the given options, the third option is "to allow for the possibility of refutation", so the answer is the third option with its text: "to allow for the possibility of refutation")