Cellulose is a(n):. a) indigestible fiber.
b) simple carbohydrate.
c) energy-yielding nutrient.
d) danimal polysccharide.

tge answer may be indigestible fiber because human cannot digest it.

A. indigestible fiber

Explanation:

indigestible means it is not really digested .

A benefit is that it decreases constipation

is there a year set? the question is incomplete

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."