Question

select the choice that best answers the following question.
which of the following are warning signs of a back injury?
a) stiffness and tingling
b) increased range of motion
c) lack of pain in the lower back
d) improved posture when sitting or standing

Explanation:

Back injuries often lead to stiffness (due to muscle tension or joint issues) and tingling (which can be a sign of nerve impingement). Increased range of motion is not a sign of injury (injuries usually limit motion), lack of pain is the opposite of what's expected (back injuries typically cause pain), and improved posture is not a warning sign (injuries may cause poor posture).

Answer:

A. Stiffness and tingling