Correct Answer: RWHZ

Solution : Given:
Z_TSVZV_R_XANP_E

To fill the series we have to divide the series – Z_TS \ VZV_ \ R_XA \ NP_E
Let's check each option —
First option: RWHA; Z R TS \ VZV W \ R H XA \ NP A E (No repeated pattern has been found )
Second option: HZPX; Z H TS \ VZV Z \ R P XA \ NP X E (No repeated pattern has been found)
Third option: RWHZ; Z R TS \ VZV W \ R H XA \ NP Z E (The first letter decreased by 4, the second letter increased by 8, the third letter increased by 2 and the fourth letter increased by 4 in the given series)
Fourth option: UROH; Z U TS \ VZV R \ R O XA \ NP H E (No repeated pattern has been found)

So, the series becomes→ZRTSVZVWRHXANPZE. Hence, the third option is correct.