The correct answer is: B. Kilokhari
Jalauddin Feroz Khilji, the founder of the Khilji dynasty, made Kilokhari his capital. Kilokhari was a small town in the present-day state of Haryana, India. It was located on the banks of the Yamuna River.
Kilokhari was chosen as the capital of the Khilji dynasty because it was a strategically important location. It was located on the main trade route between Delhi and Agra. It was also close to the border of the Delhi Sultanate, which made it a good base for launching attacks against the Sultanate.
Kilokhari was the capital of the Khilji dynasty for a short period of time. In 1296, Alauddin Khilji, the son of Jalauddin Feroz Khilji, became the ruler of the Khilji dynasty. Alauddin Khilji decided to move the capital of the Khilji dynasty to Delhi. He did this because Delhi was a larger and more important city.
Kilokhari declined in importance after Alauddin Khilji moved the capital of the Khilji dynasty to Delhi. However, it continued to be a small town until the 16th century. In the 16th century, the town was abandoned.
Sonipat, Gopalgiri, and Hansi are all towns in the present-day state of Haryana, India. However, they were not the capital of the Khilji dynasty.