The correct options are
B Regions in present-day Iran
C Regions in Central Asia
D Regions in north-western parts of the subcontinent
Sultan Mahmud of Ghazni ruled from 997 CE to 1030 CE. He was known for raiding temples in India to loot wealth. He attacked the Somnath temple in Gujarat. He ruled regions in Iran, Central Asia and north-western parts of the Indian subcontinent.