PLZ HELP ITS MY LAST QUESTION I WILL MARK BRAINLIEST!!!!

Which of the following is true regarding enzymes?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A

Enzymes can only be used once during a reaction.

(Choice B)
B

Enzymes are reusable.

(Choice C)
C

Enzymes are usually carbohydrates.

(Choice D)
D

Enzymes denature at their optimum temperatures.