To determine the meaning of "ambassador" in paragraph 4, it’s important to consider the context in which it is used. Based on the dictionary definitions provided:
- An official envoy to another country (a)
- An authorized messenger (b)
- An unofficial representative (c)
The most suitable answer would be:
a. a diplomat sent to another country for official business
If the paragraph explicitly discusses a diplomat or an official envoy representing their country's interests overseas, this choice aligns well with the definition of ambassador. If it refers to informal interactions or unofficial representation, another option might be more relevant. However, without the actual text of the paragraph, option a is generally the most formal and classic interpretation of the term "ambassador".