In a certain code language, 'CHORUS' is coded as UVTPJD and 'ANTHEM' is coded as OFJUPB. How will 'VOLUME' be coded in the same language?

The word ‘CHORUS’ has been coded as ‘UVTPJD’.
Step-1 Reverse the word: $$\text{CHORUS} \;\longrightarrow\; \text{SUROHC}$$
Step-2 Move the letters alternately by $$+2, +1, +2, +1, +2, +1$$:
S$$+2$$→U, U$$+1$$→V, R$$+2$$→T, O$$+1$$→P, H$$+2$$→J, C$$+1$$→D;
thus obtaining $$\text{UVTPJD}$$, which matches the given code.

Verify the same rule with ‘ANTHEM’.
Reverse: $$\text{ANTHEM} \;\longrightarrow\; \text{MEHTNA}$$
Shift by $$+2, +1, +2, +1, +2, +1$$:
M→O, E→F, H→J, T→U, N→P, A→B ⟹ $$\text{OFJUPB}$$, again matching the question. Hence the rule is confirmed.

Now code ‘VOLUME’.
Reverse: $$\text{VOLUME} \;\longrightarrow\; \text{EMULOV}$$

Apply the same alternating shifts:

E$$+2$$→G,
M$$+1$$→N,
U$$+2$$→W,
L$$+1$$→M,
O$$+2$$→Q,
V$$+1$$→W.

Thus, ‘VOLUME’ is coded as $$\text{GNWMQW}$$.

Option D which is: GNWMQW