Answer:
I chose "my being late."
Explanation:
I chose "my" because when you continue the sentence it will make more sense and it will sound more professional.
Answer:
chad rider is a sr. manager, development test - space X
"the
defenses of a castle" would be the best option for an author who is attempting to to develop the setting of a short story based on a medieval war, since it has to do with the battle.