If APPLE is coded as MOOPQ, SIR is coded as ABC and MANGO is coded as TMVWX, then ORANGE is coded as:

Correct option is D

Given:

$$A \to M \\P \to O \\P \to O \\L \to P \\E \to Q$$         $$S \rightarrow A \\I \rightarrow B \\R \rightarrow C$$        $$M \to T \\A > M \\N \to V \\G \to W \\O \to X$$​

After comparing all the letters of the word ORANGE we can find the desired answer.

​$$O \to X \\R > C \\A \to M \\N \to V \\G \to W \\E \to Q$$

​​ORANGE is coded as: XCMVWQ