What is the probability of drawing a diamond from a well-shuffled pack of 52 cards, where each outcome is equally likely?

What is the probability of not drawing an ace from a well-shuffled pack of 52 cards, where each outcome is equally likely?
a. i) 1/4 ii) 48/52
b. i) 1/13 ii) 51/52
c. i) 13/52 ii) 48/52
d. i) 1/4 ii) 50/52