Test Your Knowledge Tuesday!

The answer to last week's tester: $1.19 (3 quarters, 4 dimes, and 4 pennies)

This week challenge:
Which letter would logically replace the question mark?

A, E, F, H, I, K, L, M, N, ?

Feel free to post answers in the comments section, or return next Tuesday to find out what the answer is.

Your time...starts...NOW!