To answer this question, let's break it down step by step:
First, we need to find the letter that is midway between K and S.
The alphabet order is: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.
So the letter midway between K and S is the letter that comes after K and before S, which is L.
Next, we need to find the third letter to the right of L.
Counting three letters to the right of L, we have M, N, and O.
Therefore, the third letter to the right of the letter midway between K and S is the letter O.
Now let's go through the options:
Option A) O - This option is incorrect because it is the letter we found as the third letter to the right of the letter midway between K and S.
Option B) P - This option is incorrect because it is the letter immediately to the right of the letter we found.
Option C) Q - This option is incorrect because it is the letter two positions to the right of the letter we found.
Option D) R - This option is correct because it is the letter three positions to the right of the letter we found.
Therefore, the correct answer is D) R.