Respuesta :
A, because it specifies what kind of other thing the writers are writing (genre)
A. Modern novelists often expand to other genres, such as screenwriting.
Broad and generic words like "things" and "stuff" are too vague for formal writing. They make the author's points weak and not well thought out. Options B, C, and D use these vague words so they do not have precise wording. Option A uses the word genres instead of "things" or "stuff".