Solve the Problem. -There Are 3 Balls in a Hat; One with the One

Solve the problem.
-There are 3 balls in a hat; one with the number 3 on it, one with the number 4 on it, and one with the number 7 on it. You pick a ball from the hat at random and then you flip a coin to obtain heads (H) or tails (T) . Determine
The set of possible outcomes.

A) {3 H, 4 H, 7 H}
B) {3 4 7 H, 3 4 7 T}
C) {3 H T, 4 H T, 7 H T}
D) {3 H, 3 T, 4 H, 4 T, 7 H, 7 T}