Multiple choice

Directions: Complete the following series.

HKN, QTW, ZCF, ____

  1. ILO

  2. KMN

  3. BDG

  4. HKM

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A Correct answer
Explanation

The first group consists of three different letters and the second group is H + 9, K + 9, N + 9 and so on.

The last group should be Z + 9; C + 9; F + 9