Genre is a category of artistic composition as in literature or music, which share similarities in style, form or subject. It also refers to any type of communication form, such as written, oral, artistic or digital. As a consequence, email, poster and website belong in the genre classification.
The sentence in which the adjective phrase or adverb phrase is best used to correctly maintain the meaning of the original sentences is D. Nicaragua has become a destination for adventurous tourists to visit. The other options don't even have these phrases.