The correct answer is A. Hisar.
Hisar was a Muslim-dominated region in Haryana for several centuries. The region was ruled by the Mughal Empire from the 16th to the 18th centuries, and then by the British from the 18th to the 20th centuries. During this time, a large number of Muslims migrated to the region, and they eventually became the majority population.
The Muslim population of Hisar continued to grow in the 20th century, and by the time of India’s independence in 1947, they made up about 60% of the total population. However, in the years since independence, the Muslim population of Hisar has declined, and they now make up about 40% of the total population.
The decline in the Muslim population of Hisar is due to a number of factors, including migration to other parts of India, intermarriage with Hindus, and conversion to Hinduism. However, the Muslim community in Hisar remains a significant minority, and they continue to play an important role in the region’s culture and society.
The other options are incorrect because they are not Muslim-dominated regions. Jind is a Hindu-dominated region, Sonipat is a Sikh-dominated region, and Panipat is a mixed region with a significant Muslim population.