What are the characteristics of the digestive system in sloths?

The first wave of contraction in the stomachs begins in the cardiac pouches and moves caudally, followed by a wave of relaxation.
The duodenum is very short and the intestines in general are short in relation to the total length of the digestive system and compared to other mammals.
The pancreas is partially diffuse and apparently exclusively composed of alpha cells that synthesize and release glucagon.
The rectum forms a large dilation where rounded feces accumulate.
a) Only statement I is correct.
b) Statements II, III, and IV are correct.
c) Statements I, II, III, and IV are correct.
d) None of the statements are correct.