Answer: B. Yes; a false hypothesis gives a scientist new information to use.
Step-by-step explanation:
Let us take a look and break down all the question's answer options.
✗ A.
Yes; now he knows that the exact opposite of his hypothesis must be true.
➜ This is not the case. He must look at this data and decide what is true.
✓B.
Yes; a false hypothesis gives a scientist new information to use.
➜ Yes! We learn from our research and looking back at our hypothesis.
✗ C.
No; a false hypothesis makes a scientist look silly.
➜ This isn't true. You cannot expect to be right all the time, and scientists make incorrect hypotheses frequently.
✗ D.
No; false hypotheses are a waste of time.
➜ Tying back into B and C, this isn't true. We learn from comparing our hypotheses with our data.