The sentence that best represents the definition of the word "ambiguity" is: Chad's ambiguity when answering questions during his presentation led the teacher to believe he was unprepared.
Explanation:
1. The definition of ambiguity is doubtfulness or uncertainty of meaning or intention, which can make something unclear or indefinite.
2. In the sentence provided, Chad's ambiguity while answering questions implies that his responses were unclear or uncertain, leading the teacher to believe that he was not prepared.
3. This situation illustrates how ambiguity can create confusion or doubt in communication, making it difficult for others to understand the intended meaning.
Therefore, Chad's ambiguity in answering questions during his presentation exemplifies the concept of ambiguity as described in the definition provided.
