Final answer:
The orbicularis oculi is the muscle that closes the eye and produces winking, blinking, and squinting. Hence the correct answer is option A
Step-by-step explanation:
The muscle that closes the eye and produces winking, blinking, and squinting is the orbicularis oculi. This circular muscle surrounds each eye and is responsible for closing the eyelids. When the orbicularis oculi contracts, the eyelids move downwards, closing the eye.
Hence the correct answer is option A