In a certain language PROSE is coded as PPOQE. How will LIGHT be coded ?

Given : PROSE is coded as PPOQE

The pattern followed is that the letters at odd position are written as it is, while there is a difference of 2 letters in the alphabets at even position.

Letters at odd position = POE : POE

Letters at even position = RS (-2 letters) : PQ

Similarly, for 'LIGHT', letters at odd position i.e.,  LGT will be written as it is and 'IH' will change to 'GF'.

Thus, LIGHT : LGGFT

=> Ans - (D)