Answer:
basically, the guy is talking to a lady that claims that they were in love and that they were a thing. The guy doesn't remember and he has no idea who she is but she is certain its him, she even tells him what they did. She begs for forgiveness cuz she cheated on him. Then he says that whoever cheated on, it must've messed up her memory because it was not him she cheated on
Answer:
d. ser is used tl describe location
im native spanish speaker ser is like being or you are it depends on the sentence but in this case you cannot talk of a location with the word Ser