Final answer:
The match for the word "venture" meaning dare is a) 'hazard.' The word closest to the meaning of hypothesis is 'suggestion,' representing an educated guess or proposed explanation.
Step-by-step explanation:
The word "venture" when used as a verb, meaning to dare or to take a risk, has a synonym in the options provided. Option A) hazard is the closest in meaning to "venture," as it also implies a risk or a danger that one might dare to undertake. So, the correct match for "venture" in the given context is hazard. Caution, retreat, and observation all have different meanings: caution means carefulness, retreat means to withdraw, and observation means the act of observing.
For the term hypothesis, it is defined as an educated guess or a proposed explanation made on the basis of limited evidence as a starting point for further investigation. Therefore, the word from the choices that is closest in meaning to hypothesis is D) suggestion. This is because a suggestion, like a hypothesis, is a proposal that is put forward for consideration, and is not yet confirmed as fact or law.