Option D: The chest-and-arm stretch squeezes the shoulder blades together.
The chest-and-arm stretch is an exercise in which the arms and chest are stretched to the extent up to a completely normal motion without feeling any pain. This exercise helps by loosening the muscles of the chest, improving blood circulation, and preventing neck and back pain. It also helps you to open up your chest and align the shoulder blades, provide a proper and aligned posture and increase flexibility.
The shoulder blade is called the scapula. It is a large triangular-shaped bone that lies in the upper back at both shoulders. It is supported by the associated muscles and helps you to move your arms. The primary muscle involved in squeezing the shoulder blades is the rhomboid.
When we perform chest-and-arm stretches, both of the shoulder blades are squeezed together. Therefore, option D is the correct answer.
To know more about shoulder blades, refer to the following link:
https://brainly.com/question/13551410
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