Final answer:
The abbreviation 'TOB' stands for 'type of bill,' which is true. For the second part, 'suggestion' is the term closest in meaning to the hypothesis, as both imply a proposal that awaits testing or consideration.
Step-by-step explanation:
The abbreviation TOB does indeed stand for the type of bill in the context of healthcare billing and coding. So, the correct answer to the first question is: a. True.
Regarding the second question, a hypothesis is an educated guess or a tentative explanation for an observation or scientific problem that can be tested by further investigation. Therefore, the word that is closest in meaning to hypothesis would be a suggestion. This is because a hypothesis suggests a possible explanation that needs to be tested, much like how a suggestion implies a proposal or idea to consider. So, the correct answer to the second question is: