Who among the following was the slave-general of Alauddin Khilji, who led his army in the battle against Ramachandra of Devagiri?

Correct option is B

The correct answer is (b) Malik Kafur
 It was Malik Kafur who led the army in the decisive battle against Ramachandra of Devagiri in 1308.
 Malik Kafur was a famous slave of Allauddin Khilji.
 He was also known as 'Hazar Dinari' because he was purchased by the Sultan for 1000 Dinars from Nusrat khan.
 He was also known as the 'Evil Genius of the Sultan'.
 Zafar Khan was a military general who had lead the army of Alauddin Khilaji in many campaigns.
 He helped the sultan to capture Multan, Sivistan and Jaran Manjur.
 He died in the battle of Kili against Mongols in 1299 AD.