Which of the following refers to a bone disorder found most often in the aged and resulting in the bones becoming porous and light?
a. osteomalacia
b. osteoporosis
c. rickets
d. paget's disease

The correct answer is option - B) osteoporosis.

Explanation:

Osteoporosis is the group of various diseases in which resorption is more than the bone deposit. In this disease, bones become porous and light that leads to bones to become fragile and prone to fractures.

The composition is not changed and the matrix remains the same however the mass of the bone decline. This is found more often in aged people.

Thus, the correct answer is option B. osteoporosis.

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