Firstly, Conditional past real mood is a statement where one explains what they would have done if some event had occurred, or what could happen, in other words, a theoretical action. The tense will be dependent on the action. Therefore, the only one that fits is C "If I had homework, I would have studied at the library." I properly states their theoretical scenario in which they had homework.
Answer:
overly bold
Explanation:
Mrs Owens felt that Halloween is a holiday. She is not aware of the traditions that are followed this day. She thinks herself to be sure and does not wishes to identify if there is any tradition on this day. She just considers it as a holiday and refuses to give candies to the people coming her door.