Explanation:

Correct option 

Each letter in the word "ZERO" is replaced by the letter that is three places ahead of it in the English alphabet.
Z -> C (Z is the 26th letter, C is the 3rd letter, 26+3 = 29, but since there are only 26 letters, we subtract 26 to get 3)
E -> H (E is the 5th letter, H is the 8th letter, 5+3 = 8)
R -> U (R is the 18th letter, U is the 21st letter, 18+3 = 21)
O -> R (O is the 15th letter, R is the 18th letter, 15+3 = 18)
So, using the same rule for "PLAYER":
P -> S (P is the 16th letter, S is the 19th letter, 16+3 = 19)
L -> O (L is the 12th letter, O is the 15th letter, 12+3 = 15)
A -> D (A is the 1st letter, D is the 4th letter, 1+3 = 4)
Y -> B (Y is the 25th letter, B is the 2nd letter, 25+3 = 28, but since there are only 26 letters, we subtract 26 to get 2)
E-> H (E is the 5th letter, H is the 8th letter, 5+3 = 8)
R -> U (R is the 18th letter, U is the 21st letter, 18+3 = 21)
So "PLAYER" is written as "SODBHU".