Concept:
Direct substitution coding maps specific letters to specific digits found in the examples.
Step 1: Map the letters.
M=9, E=1, K=7, L=8, F=2.
L=8, J=6, K=7.
Word IGHED: I=?, G=?, H=?, E=1, D=?
Step 2: Deducing the pattern.
Since E=1, the code must end in 1. Only option (C) fits if we extrapolate. Wait, 53410. Let's re-verify.
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IGHED = 53410
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53410
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