Select the option that is related to the third term in the same way as the second term is related to the first term.

AB : C :: HJ : ?

K

A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

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THE LOGIC FOLLOWED HERE IS :

ADDITION OF POSITIONAL VALUE = GIVEN ALPHABET

AS

A + B  = C

1 + 2  =  3

SIMILARLY

H    +  J  =  R

8    + 10 = 18