Answer:
Chemical vapors may penetrate the contact lens material and cause the lens to adhere to one's eye.
Explanation:
The most correct answer is D, devote at least eight hours a day to the project. Have you heard that if you divide the work into days, then it would be easier? If you were to take a break from the project when you need it, you might procrastinate about it. If you were to work on the project well into the night, then you will be tired or stressed out of your energy.
