The attraction or pull of a mass toward the earth; a constant external force that gives mass weight

A 26-year-old man is entrapped in a truck that struck a tree at a high rate of speed. He has suffered blunt trauma to the chest and has a decreased level of consciousness. Which of the following is the BEST reason to transport this patient by helicopter to the hospital?

A) A family member on-scene requests it. B) Death of the truck's driver has occurred. C) The helicopter base is only a mile away. D) Prolonged extrication was necessary.

The most common cause of adrenal insufficiency is:

A) autoimmune destruction of the cells producing the hormone B) infections such as tuberculosis, histoplasmosis, and meningococcemia C) hemorrhage into the adrenal glands D) metastasis of malignant tumors