Answer:
I think the 3rd one is the answer
Descriptions that tell what the stage looks like will most likely be in stage directions.
Answer:
Dear cousin, thank you very much for inviting me to your birthday party next Saturday. From now on I want to assure you that I will be there to celebrate with you, just as you wanted me to. Also, I will bring a great gift so you know how much I appreciate you and what you mean to the family. I send you a big hug, your favorite cousin.
Rear, tail, end, tail end