GAUSS7 2018 Problem 10

The 26 letters of the alphabet are written in order, clockwise around a circle. The ciphertext of a message is created by replacing each letter of the message by the letter that is 4 letters clockwise from the original letter. (This is called a Caesar cipher.) For example, the message ZAP has ciphertext DET. What is the ciphertext of the message WIN?

Answer Choices
A. A L N
B. Z L N
C. A M R
D. A M Q
E. Z M Q