Answer:
b
Step-by-step explanation:
a. this is just false . some enzymes break down starch, but starch is not a part of their composition
b. this is true, because enzymes are proteins, and proteins' shape is fundamental for their functionality
c. no, they're proteins. some are lipoproteins , but not fats.
d. some are, some are not
e. what
hope this helps!