Epistolary-which is the literary work in the form of letters.
"Has been waiting" should be your answer. a simple predicate is the verb or verb phrase in the sentence and it usually tells what the subject does.
I think it would be B. pathos because it would be a emotional reason its persuading you by appealing to emotion.
My opinion/answer: I think that you shouldn’t date older woman because it can lead to other things, plus it also depends how old are they like for example, (16 and 27) that is too old for me in my own opinions.