Which source is important in studying Vijayanagara ruins?

A. archaeology and traveller accounts

Step 1: Identify the concept: this is source combination. Step 2: Hampi ruins and accounts of foreign travellers together explain Vijayanagara history. Step 3: Vijayanagara study = archaeology plus texts.

Step 1: अवधारणा पहचानें: यह source combination है। Step 2: Hampi के ruins और foreign travellers के accounts together Vijayanagara history बताते हैं। Step 3: Vijayanagara study = archaeology plus texts।