Concept:The series follows a pattern where each step adds an increasing number of positions in the alphabet.Explanation:C to E: add 2 letters (C +2 = E).E to H: add 3 letters (E +3 = H).H to L: add 4 letters (H +4 = L).L to Q: add 5 letters (L +5 = Q).Q to next: add 6 letters (Q +6 = W).Thus, the next letter is W.
