In a certain code language, DOOR is written as FRSW. How will FAN be written as in that language?

DOOR is written as FRSW

FAN be written as ?

Logic: Each letter is shifted by an increasing value: +2, +3, +4, +5.

First pair: DOOR is written as FRSW:

D → +2 = F, O → +3 = R, O → +4 = S, R → +5 = W.

Now, apply the same pattern to FAN:

Second pair: FAN be written as ?

F → +2 = H, A → +3 = D, N → +4 = R.

Thus, FAN will be written as HDR.

Thus, the correct option is (a) HDR.​

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