Leg bone in the human body is –

Correct answer: (a) Hollow

Explanation

The long bones of the leg, such as the femur, are hollow tubes: a strong shell of compact bone around a central marrow cavity.

A hollow tube is nearly as strong as a solid rod of the same width but much lighter.

Some keys give (c) Solid. The shaft of a long leg bone is a hollow tube of compact bone filled with marrow.