Sri Ranganathswamy Temple is in Tamil Nadu -> dedicated to a specific deity.
It is a major Vaishnavite temple.
The temple is dedicated to Lord Vishnu -> main deity worshipped here.
Option 2 is the correct answer.
This temple is one of the 108 Divya Desams -> sacred places for Vaishnavites.
Lord Vishnu is the main deity, confirming Option 2.