Enzymes work at all pH levels. Enzymes decrease the rate of metabolism. Enzymes enable reactions to occur at lower temperatures. Enzymes raise the activation energy needed for a reaction.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Helena investigates how enzymes are important to body processes. How is the role of enzymes in biochemical activity best explained?
Possibilities:
- Enzymes work at all pH levels.
- Enzymes decrease the rate of metabolism.
- Enzymes enable reactions to occur at lower temperatures.
- Enzymes raise the activation energy needed for a reaction.

Enzymes enable reactions to occur at lower temperatures.