How many digits do modifiers have?

Based on research and published guidelines, attempting to resuscitate the patient in cardiac arrest may be _____________in certain instances

a. futile and wasting time b. dangerous or a waste of resources c. safe and suitable d. withheld or terminated

As the body ages, the intervertebral discs:

A) calcify and become more rigid. B) enlarge and result in increased height. C) are not able to protect the spinal cord. D) lose water content and become thinner.