Final Answer:
The correct vocabulary word is "Representative."
B) Representative
Step-by-step explanation:
The correct vocabulary word is "Representative." This term refers to a person or thing that represents another or others, especially in an official capacity, such as a representative in government or an ambassador representing a country. In the given options, "Ambassador" and "Representative" are closely related, but the latter is a broader term encompassing various contexts beyond international relations. The other options—Expanse, Expand, Source, Uninhabited, and Congress—do not align with the definition provided in the question.
In the context of the options:
- Ambassador (Option A) refers specifically to a diplomatic official representing a country.
- Representative (Option B) is a more general term that includes various forms of representation, including in government.
- Expanse (Option C) and Expand (Option D) relate to the idea of size and growth, not representation.
- Source (Option E) pertains to the origin or cause of something, not representation.
- Uninhabited (Option F) describes a place without inhabitants, unrelated to representation.
- Congress (Option G) is a legislative body and doesn't directly connote representation.
Therefore, the most fitting definition corresponding to the correct vocabulary word in the given options is "Representative."