I've had this question before and the answer is D) 30 minutes per day, 5 days a week
Training too many times a week and not letting your body rest.
Answer:
a stimulus that causes stress
Explanation:
Strabismus may cause reduced vision, or amblyopia, in the misaligned eye. The brain will pay attention to the image of the straight eye and ignore the image of the crossed eye. If the same eye is consistently ignored during early childhood, this misaligned eye may fail to develop good vision, or may even lose vision.