GAUSS7 2011 Problem 21

Steve begins at 7 and counts forward by 3, obtaining the list 7,10,13, and so on. Dave begins at 2011 and counts backwards by 5, obtaining the list 2011,2006,2001, and so on. Which of the following numbers appear in each of their lists?

Answer Choices
A. 1009
B. 1006
C. 1003
D. 1001
E. 1011