The correct answer is A. Q.
The missing character is the one that completes the following pattern:
- 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
The pattern is a simple one: each letter is followed by the letter that comes two places after it in the alphabet. So, A is followed by C, B is followed by D, and so on.
The only letter that does not follow this pattern is Q. Q is followed by R, but R is already in the pattern. Therefore, the missing character must be Q.
A is the first letter of the alphabet, and Z is the last letter. So, the pattern starts with A and ends with Z.
The pattern is also symmetrical. If you start at any letter and follow the pattern, you will eventually end up back at the same letter. For example, if you start at A, you will follow the pattern A-C-E-G-I-K-M-O-Q-S-U-W-Y-Z-A.
The pattern is also consistent. Every letter in the alphabet is followed by the letter that comes two places after it in the alphabet. There are no exceptions.
Therefore, the missing character is Q.