Find the missing letter in the series: b, d, f, h, ?

A. J

Identify the odd pair of words from the following options.

C. CHEF - RECIPE

If 'CAT' is coded as '3120', 'DOG' is coded as '4157', what is the code for 'FISH'?

B. 61278

If in a certain code, 'CAT' is coded as 'DBU', how is 'DOG' coded in that code?

A. EPH

In a certain code, the word 'DOG' is coded as '47'. If the letters are assigned values where A=1, B=2, ..., Z=26, what is the code for 'FISH'?

C. 54