Kumbh Mela and Sangam are famous in which state?

Correct option is B

The correct answer is (b) Uttar Pradesh.
Kumbh Mela is one of the largest religious gatherings in the world, attended by millions of people. This Hindu festival is celebrated four times over the course of 12 years, with the location rotating among four pilgrimage sites on four sacred rivers: Haridwar on the Ganges in Uttarakhand, Ujjain on the Shipra in Madhya Pradesh, Nashik on the Godavari in Maharashtra, and Prayagraj at the Sangam of the Ganges, Yamuna, and the mythical Sarasvati in Uttar Pradesh.
The Sangam, which is specifically mentioned in your question, is the confluence of three rivers — the Ganges, the Yamuna, and the invisible or mythical Sarasvati. It is located in Prayagraj (formerly known as Allahabad) in Uttar Pradesh. This site is particularly significant during the Kumbh Mela held in Prayagraj, as it is believed to be especially auspicious for ritual bathing due to the confluence of these three sacred rivers. Hence, Uttar Pradesh is famous for both Kumbh Mela and Sangam, making option (b) the correct answer.