C- messages will be the answer
B. Intensive pronouns
In this case, the pronoun "himself" is right after the noun, so it is intensive. If the pronoun was after the verb, then it would have been reflexive.
The answer is C. An appositive phrase is where a noun is restated. "A town in Florida" is right next to the noun, St. Augustine. C. restates the noun in a different way, right next to the noun, St. Augustine.
Answer is d <span> Different societies have different ideas about the purpose of marriage</span>