Multi-select problem: How does the next paragraph end?

How to write a letter to your best friend
Take notes.
It can be scary to sit down to a blank page and try to write a long, meaningful letter. Even though you know your best friend well, it can still be difficult to think of what to write.

Choices: a). Write and write until you're in a calm and peaceful place. Your best friend wants you to get a sense of happiness and stress. b). Taking notes will help you keep track of what you're writing down and will keep you from being sidetracked by the stress of the present moment. For example, if you are having trouble coming up with a great thank you letter, write down a few things you're grateful for about your friend. c). The best way to stay in tip-top shape is to write down every word and question that comes up in your letter. You should be able to recite these answers if you're really struggling to think of them. d). As you go through your day, take notes of little things you think your best friend would like, events you want to tell your best friend about, or just things you find funny. Your friend will appreciate that you include these little details about your daily life in the letter.
d).