For which of the following integers b is the base- b number 2021_{b}-221_{b} not divisible by 3 ?

**Answer Choices**

A. 3

B. 4

C. 6

D. 7

E. 8

For which of the following integers b is the base- b number 2021_{b}-221_{b} not divisible by 3 ?

**Answer Choices**

A. 3

B. 4

C. 6

D. 7

E. 8