Final answer:
The antonym of contradict is option A) agree, meaning to be in accord or harmony. A hypothesis is similar to a suggestion, being a proposed, testable explanation yet to be confirmed.
Step-by-step explanation:
The word that means the opposite of contradict is agree. When you contradict, you are expressing the opposite viewpoint or stating that something is not true, whereas when you agree, you are in harmony or accord with the statement or viewpoint being presented. Therefore, the correct answer is a. Agree.
As for the word closest in meaning to hypothesis, the best choice is d. suggestion. A hypothesis is a proposed explanation for an observation or a scientific problem that can be tested through further investigation and experimentation. It's not yet confirmed as true, similar to a suggestion, which is a proposal or idea that one puts forward for consideration.