Task: Question Answering
Input (English): Question: Set #1 = {A, B, C, D, E, F}
Set #2 = {K, L, M, N, O, P}
There are these two sets of letters, and you are going to pick exactly one letter from each set. What is the probability of picking at least one vowel?

 Option A: 1/6

 Option B: 1/3

 Option C: 1/2

 Option D: 2/3

 Option E: 4/9
Output (English): Option E