Question

a hypothesis that can lead to further investigation is most likely: question 18 clear and concise based purely on imagination too broad to test silly and nonsensical choose a response...

Explanation:

A good hypothesis for further investigation should be clear and concise, allowing for focused testing and exploration. Hypotheses based purely on imagination, too broad to test, or silly and nonsensical are not useful for scientific or academic inquiry as they cannot be properly evaluated or investigated in a meaningful way.

Answer:

Clear and concise