Please help! I need a lot of help in math!

Thomas starts a canned food collection with two cans of food. He challenges his friends to bring 4 cans on the second day, 8 cans on the third day, and 16 cans on the fourth day. Thomas and his friends plan to collect cans for 10 days. Which statement describes why this sequence is a function?

Select each correct answer.

A. The graph of the sequence would pass the vertical line test.

B. The graph of the sequence would pass the horizontal line test.

C. Each day corresponds to a unique amount of cans in this sequence.

D. Each amount of cans corresponds to a unique day in this sequence.