The correct options are
B He took over parts of Punjab, Malabar Coast, and Telangana.
C He introduced Copper and Bronze coins.
Ghiyasuddin Tughlaq built a city six kilometres east of Delhi called Tughlaqabad, with an upgraded fort to protect against invasions. Muhammad bin Tughlaq was his son who took over the throne. He took over parts of Punjab and large parts of the Malabar coast and Telangana. He introduced Copper and Bronze coins in place of the silver Tankas so that the supply of coins could be constant. Then to support his huge army, he raised taxes in Ganga- Yamuna doab. Both these plans backfired.