Which of the following statements is/are correct regarding Delhi Sultanate?

a. Khaljis were non-Turks who had come to India at the time of the Ghurid invasion

b. The Khaljis excluded the Turks from high offices, and the rise of the Khaljis to power ended the Turkish monopoly of high offices

c. Jalaluddin Khalji was the first ruler of the Delhi Sultanate who said, as the large majority of the people in India were Hindus, the state in India could not be a truly Islamic state.

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