The direct path through the body from the mouth to the anus is the:

Which of the following items is where the prior authorization number is recorded?

a. 20 b. 21 c. 22 d. 23

For security purposes, after saving a patient's demographic information, the social security number displays ____________.    

A. only the first 3 numbers B. only the last 4 numbers C. only the patient's name and address D. xxx-xx-xxxx