​In a certain code language, ‘CLAP’ is coded as ‘6452’ and ‘PALM’ is coded as ‘5428’.How is ‘M’ coded in the given language?

Given:

In a certain code language, ‘CLAP’ is coded as ‘6452’ and ‘PALM’ is coded as ‘5428’. 

L, A, P and 4, 5, 2 are common in both.

So, the code of M is 8.

Thus, correct option is (d).