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