At a high school, students can choose between three art electives, four history electives, and five computer electives. Each student can choose two electives.Which expression represents the probability that a student chooses an art elective and a history elective?
A
StartFraction 7 C 2 Over 12 C 2 EndFraction
B
StartFraction 7 P 2 Over 12 P 2 EndFraction
C
StartFraction (3 C 1) (4 C 1) Over 12 C 2 EndFraction
D
StartFraction (3 P 1) (4 P 1) Over 12 P 2 EndFraction