The probability distribution of a random variable x is p(x) = {x/12 : x = 1, 2, 3, 4, 5, 6; 0 : otherwise}. Then, the conditional probability P(3/2 < x < 7/2 | x > 2) is:
a) 1/3
b) 1/2
c) 2/3
d) 3/4