List all the elements of the sample space for the following experiment:you spin each of these spinners once.

a. (a, 1), (a, 2), (a, 3), (a, 4), (b, 1), (b, 2), (b, 3), (b, 4)
b. (a, 1), (a, 2), (a, 3), (a, 4), (b, 1), (b, 2), (b, 3), (b, 4), (c, 1), (c, 2), (c, 3), (c, 4),(d, 1), (d, 2), (d, 3), (d, 4)
c. (b, 1), (b, 2), (b, 3), (c, 1), (c, 2), (c, 3)
d. (c, 1), (c, 2), (c, 3), (c, 4), (d, 1), (d, 2), (d, 3), (d, 4), (a, 1), (a, 2), (a, 3), (a, 4)