Option d is the correct answer. A. Bhoj was a king of the Paramara dynasty, who ruled over Malwa region in central India. His capital was Dhar, a city in present-day Madhya Pradesh. He was a patron of art, literature and architecture, and built several temples and monuments in his kingdom. B. Durgawati was a queen of the Gond tribe, who ruled over Gondwana region in central India. Her capital was Garha-Mandla, a town in present-day Madhya Pradesh. She was a brave and valiant ruler, who resisted the invasion of the Mughal emperor Akbar. C. Samudragupta was an emperor of the Gupta dynasty, who ruled over most of northern and central India. Vidhisha was the capital of the Western Malwa branch of the Gupta dynasty, which was founded by Chandragupta I, the father of Samudragupta. D. Ashoka was an emperor of the Mauryan dynasty, who ruled over most of South Asia and beyond. His capital was Pataliputra, but he also had another important city in his empire, Ujjain, which was located in present-day Madhya Pradesh. Ashoka was appointed as the viceroy of Ujjain by his father, when he was still a prince. He governed the region of Avanti, which included Ujjain as its capital.