Solution:We put all the option in blank area and check who create particular pattern
AZYRYY ā PRAYZ / YRARZ / PYAYZĀ (No particular pattern followed here)
APYZZY ā PRAYP / YRAZZ / PZAYZĀ (No particular pattern followed here)
APYZRY ā PRAYP / YRAZZ / PRAYZ (No particular pattern followed here)
But,
AZPYRY ā PRAYZ / PRAYZ / PRAYZ
Hence, "AZPYRY" is the correct answer.