Write the Sample Space for the Given Experiment $\{7\}$ B) $\{(1,1),(1,2),(1,3),(2,1),(2,2),(2,3),(3,1),(3,2),(3,3),(4,1),(4,2),(4,3)\}$ C) $\{12\}$

Write the sample space for the given experiment.
-A box contains 3 blue cards numbered 1 through 3 , and 4 green cards numbered 1 through 4 . A blue card is picked, followed by a green card.

A) $\{7\}$
B) $\{(1,1) ,(1,2) ,(1,3) ,(2,1) ,(2,2) ,(2,3) ,(3,1) ,(3,2) ,(3,3) ,(4,1) ,(4,2) ,(4,3) \}$
C) $\{12\}$
D) $\{(1,1) ,(1,2) ,(1,3) ,(1,4) ,(2,1) ,(2,2) ,(2,3) ,(2,4) ,(3,1) ,(3,2) ,(3,3) ,(3,4) \}$