Determine the Possible Values of the Random Variable $- 5 , - 4 , - 3 , - 2 , - 1,0,1,2,3,4,5$

Multiple Choice

Determine the possible values of the random variable.
-Suppose that two balanced dice, a red die and a green die, are rolled. Let Y denote the value of G - R where G represents the number on the green die and R represents the number on the red die.
What are the possible values of the random variable Y?

A) $- 5 , - 4 , - 3 , - 2 , - 1,0,1,2,3,4,5$
B) $0,1,2,3,4,5$
C) $0,1,2,3,4,5,6$
D) $- 6 , - 5 , - 4 , - 3 , - 2 , - 1,0,1,2,3,4,5,6$