How many of the first ten numbers of the sequence 121,11211,1112111, \ldots are prime numbers?

**Answer Choices**

A. 0

B. 1

C. 2

D. 3

E. 4

How many of the first ten numbers of the sequence 121,11211,1112111, \ldots are prime numbers?

**Answer Choices**

A. 0

B. 1

C. 2

D. 3

E. 4