Final answer:
The goal pH of the ocular surface is 7.4 - 7.6.
Step-by-step explanation:
The goal pH of the ocular surface is C) 7.4 - 7.6. The pH scale ranges from 0 to 14, where anything below 7 is acidic and anything above 7 is alkaline. The ocular surface, which includes the tear film covering the eye, has a slightly basic pH to help protect and maintain the health of the eyes.