The Fibonacci sequence 1,1,2,3,5,8,13,21, \ldots starts with two 1 s, and each term afterwards is the sum of its two predecessors. Which one of the ten digits is the last to appear in the units position of a number in the Fibonacci sequence?

**Answer Choices**

A. 0

B. 4

C. 6

D. 7

E. 9