Correct Answer: R Y R Z R

Solution : Given:
ZYR_Z_RRZY_R_YR _

To fill the series, we have to divide the series – ZYR_/ Z_RR/ ZY_R/ _YR _

Let's check each option –
First option: R Y R Z R; ZYR R / Z Y RR / ZY R R / Z YR R (ZYRR is repeated in the series)
Second option: Z R Y Z R; ZYR Z / Z R RR / ZY Y R / Z YR R (No pattern is repeated)
Third option: R Z R Y Z; ZYR R / Z Z RR / ZY R R / Y YR Z (No pattern is repeated)
Fourth option: Z R R Y Z; ZYR Z / Z R RR / ZY R R / Y YR Z (No pattern is repeated)

So, only the first option follows a pattern. Hence, the first option is correct.