The correct one is C. You are quite a hardworking young man.
The past perfect refers to a time earlier than before now. It is used to make it clear that one event happened before another in the past. It does not matter which event is mentioned first - the tense makes it clear which one happened first.
The weight of a persons heart
If the weight of the persons heart was heavier than a feather they would not be able to go to the afterlife
Tybalt is the son of Lady Capulet’s brother and Juliet’s hot-headed first cousin.