a paraplegic individual develops decubitus ulcers (pressure sores) on the buttocks from sitting in a wheelchair for extended periods. name the body protuberance responsible.

Ischial Tuberosity

Explanation:

Decubitus ulcers (pressure sores) on the buttocks from sitting in a wheelchair for extended periods is a form of the condition called "Ischial bursitis"

This form of condition arises as a result of injury or overuse of ISCHIAL TUBEROSITY a form of rounded bone that extends from the ischium.

Hence, considering the nature of the sores described above in the question, the bony protuberance responsible is ISCHIAL TUBEROSITY

i think the answer is d.