The answer is C. CEGI.
The other options, A. SUWY, B. MOQS, D. HJMO, and E. PRWX, all have two letters that are repeated. For example, in A. SUWY, the letters U and W are repeated. In B. MOQS, the letters O and Q are repeated. In D. HJMO, the letters H and J are repeated. In E. PRWX, the letters P and R are repeated. However, in C. CEGI, there are no letters that are repeated.
Here is a table that shows the letters that are repeated in each option:
| Option | Repeated letters |
|—|—|
| A. SUWY | U, W |
| B. MOQS | O, Q |
| C. CEGI | None |
| D. HJMO | H, J |
| E. PRWX | P, R |