Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. GKH, DNL, WQO, TTS, GWH, ?

| Question | Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. GKH, DNL, WQO, TTS, GWH, ? | |
| Type | multiple_choice | |
| Option | KYP | incorrect |
| Option | DZL | correct |
| Option | KZO | incorrect |
| Option | FYP | incorrect |
Solution: