Option c is the correct answer. Statement 1 is correct: Sadarang Neamat Khan (also spelled Niamat Khan or Nemat Khan) was a Hindustani musical composer and artist who lived in the 18th century. He is credited with introducing and popularizing the khyal form of vocal music, which became the dominant genre of classical music in North India. Statement 2 is incorrect: A large number of musicians did not move out of regional centres to Delhi, but rather moved from Delhi to regional centres in search of more employment and patronage. This was because Delhi faced political and economic decline in the 18th and 19th centuries, due to the weakening of the Mughal Empire, the invasions of Nadir Shah and Ahmad Shah Abdali, and the rise of the British East India Company. Statement 3 is correct: A gharana (meaning "house" or "family") is a system of musical lineage or tradition that traces its origin to a particular teacher or style. A gharana is characterized by distinctive features of repertoire, technique, interpretation, and pedagogy that are passed on from generation to generation. The period of 18th and 19th centuries saw the formation of many gharanas in Hindustani music, especially in khyal singing.