The correct option is D One hump
The two surviving species of camel are the Arabian, or one-humped camel (C. dromedaries), which inhabits the middle east and the horn of Africa. The hump stores up to 80 pounds (36 kilograms) of fat, which a camel can break down into water and energy when sustenance is not available. The other being Bactrian, or two-humped camel (C. bactrianus), inhabits central Asia. Hence, option A is correct.