Write a rule for the sequence.

2, 4, 8, 16, . . .
A. Start with 2 and divide by 2 repeatedly.
B. Start with 2 and multiply by 2 repeatedly.
C. Start with 2 and add 2 repeatedly.
D. Start with 2 and multiply by 4 repeatedly.

B. Start with 2 and multiply by 2 repeatedly.