The correct options are
B He knew more than four languages.
C He built a new city called “Firozabad” on the banks of river Bhima.
D Mahmud Gawan was his most efficient and intelligent advisor.
Firoz Shah ruled the Bahamani kingdom for 25 years.Mahmud Gawan worked very honestly and was loyal to the Bahamani kingdom. He knew many languages, including Persian, Arabic, Turkish, Telugu, Kannada, and Marathi.