Answer:
Dear [<em>cousin's name</em>],
Hi [<em>cousin's name</em>], how are you? My brother's birthday is coming up soon, but I haven't decided on the birthday gift yet. Do you know what [<em>brother's name</em>] is particularly interested in right now? What do you think would be some possible items on his wishlist?
Thanks!
[<em>your name</em>]
Main clause is Cathy went to the store :)
An independent clause expresses a complete thought and can stand alone as a sentence, as opposed to a dependent one.
B I think! Hope this helps