In a certain code language, 'BILLION' is coded as '3264581' and 'MILLION' is coded as '3249581'. What is the code for 'M' in that language?

Correct option is B

Given:
'BILLION' → '3264581'
'MILLION' → '3249581'
We need to find the code for 'M'.
Observe the pattern:
The coding sequence corresponds to the position of letters in the words.
The sequence of letters in 'BILLION' maps to the numbers 3 2 6 4 5 8 1.
The sequence of letters in 'MILLION' maps to the numbers 3 2 4 9 5 8 1.
Compare both words:
Both words share ILLION in common.
In 'BILLION', the code for ILLION is 2 3 4 5 8 1.
In 'MILLION', the code for ILLION is 2 4 3 5 8 1.
Isolate the unique letter:
The unique letter in 'MILLION' is M, which does not appear in 'BILLION'.
From the code '3249581', the unique number is 9 (as the other numbers match the pattern of ILLION).
Final Answer: The code for 'M' is 9.