Explanation
The given series follows the pattern of consecutive letters of the alphabet. Each letter in the sequence is shifted one position ahead of the previous letter in the alphabet.
SCD -> TEF -> UGH -> _ -> WKL
To continue the sequence, the next letter after U should be V, followed by W, X, Y, and Z. Therefore, the missing letter in the series should be I, and the correct answer is D: IJT.
So, the completed sequence becomes:
SCD -> TEF -> UGH -> VIJ -> WKL
