Question

.

Answer 1

The correct answer to this question is (B) The enzymes would not be able to function properly outside of their optimal pH range. This is how these enzymes would most likely function in an environment where the pH was doubled. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 

Answer 2

the answer is:

The enzymes would not be able to function properly outside of their optimal pH range.

I did the test