Correct option is A
Logic follows in the Series is : -2 -2 -2 -2 -2 in each letter of given word.
Applying this to EFRON:
- E becomes C (E - 2 = C)
- F becomes D (F - 2 = D)
- R becomes P (R - 2 = P)
- O becomes M (O - 2 = M)
- N becomes L (N - 2 = L)
Thus, EFRON will be written as CDPML in that code.