Use Set Notation, and List All the Elements of the Set

Use set notation, and list all the elements of the set.
-The first six natural numbers.

A) $\{ 0,1,2,3,4,5,6 \}$
B) $\{ 1,2,3,4,5,6 \}$
C) $\{ 0,1,2,3,4,5 \}$
D) $\{ 0,2,4,6,8,10 \}$