25-K-8, 23-I-11, 21-G-14, 19-E-17, ?

Options

A. 17-F-19
B. 19-C-17
C. 17-C-20
D. 20-D-17

Answer

C

Explanation

`25overset(-2)(to)23overset(-2)(to)21overset(-2)(to)19overset(-2)(to)17`
`Koverset(-2)(to)Ioverset(-2)(to)Goverset(-2)(to)Eoverset(-2)(to)C`
`8overset(+3)(to)11overset(+3)(to)14overset(+3)(to)17overset(+3)(to)20`