Correct Answer: Indian rupee

Solution : The correct answer is (c). Indian rupee

The legal tender in India is the Indian rupee (INR). It is the official currency of India and is issued and regulated by the Reserve Bank of India (RBI). While other currencies like the US dollar, Euro, and Japanese yen may be accepted for exchange in certain circumstances, the Indian rupee is the only legal tender currency that is widely used and accepted for transactions within India.