A patient with osteoporosis (reduced bone mass) may have a history of health issues. One issue could be not enough skin exposure to the sun to make Vitamin D.
weak ligaments.
an increase in the absorption of calcium in the digestive system.
weak tendons.

not enough skin exposure to the sun to make Vitamin D.

Explanation:

The correct answer would be not enough skin exposure to the sun to make Vitamin D.

The body makes vitamin D by being exposed to the sun and this vitamin and its metabolite are quite important in the homeostasis of calcium. Calcium on its own is very essential to the formation of bones in the body.

Hence, when the skin is not adequately exposed to the sun, the body becomes short of vitamin D and this disrupts the homeostasis of calcium and the formation of bones in the body. Thus, osteoporosis, also known as weak bones, may result.

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