Correct option is D
Given:
TOGETHER → RPEFRICS

Each letter in the coded word is shifted by a certain number of positions backward or forward in the alphabet compared to the original word.

The pattern alternates between shifting -2 and +1 for each successive letter.
Apply the Pattern to BATHROOM
Using the same alternating shifts of -2 and +1 for each letter in "BATHROOM":

Following this pattern, BATHROOM is coded as ZBRIPPMN.
Correct answer: (d) ZBRIPPMN.