Identify the pattern and find the missing number: 2, 4, 8, 16, ?

C. 32

If the series is 1, 1, 2, 3, 5, what is the next number?

B. 7

In the series 2, 4, 8, 16, what is the next number?

C. 32

In the series 2, 4, 8, 16, what is the next number?

C. 32

Identify the pattern: 5, 10, 20, 40, ?

D. 80