Tree Sloths Feed on Leaves and Buds,which Are Digested by Bacteria

Tree sloths feed on leaves and buds,which are digested by bacteria that inhabit the sloth's large stomach.While in a tree,the sloth is difficult for predators to find because it is tinted green from the cyanobacteria that live in its fur.A variety of nonbiting insects also live in the fur,but they appear to have no effect on the sloth.Based on this information,one can say that the sloth has mutualistic interactions with the _______ and the _______.

A) leaves and buds;digestive bacteria
B) digestive bacteria;cyanobacteria
C) cyanobacteria;insects
D) leaves and buds;insects
E) leaves and buds;cyanobacteria