To which God is the temple Vitthala dedicated?

Lord Vishnu

The correct answer is Option 2 - Lord Vishnu

Vitthala temple is dedicated to Lord Vishnu.

The Vitthala temple: Here, the principal deity was Vitthala, a form of Vishnu generally worshipped in Maharashtra. The introduction of the worship of the deity in Karnataka is another indication of the ways in which the rulers of Vijayanagara drew on different traditions to create an imperial culture. As in the case of other temples, this temple too has several halls and a unique shrine designed as a chariot. A characteristic feature of the temple complexes is the chariot streets that extended from the temple gopuram in a straight line. These streets were paved with stone slabs and lined with pillared pavilions in which merchants set up their shops.