Under hipaa, a "disclosure accounting" is required: a. for all research where the data crosses state lines, otherwise state law applies. b. for all human subjects research that uses phi without an authorization from the data subject, except for limited data sets. c. for all human subjects research that uses phi. d. solely at the principle investigator's discretion.

The school cafeteria can make pizza for approximately $0.30 a slice. the cost of kitchen use and cafeteria staff runs about $200 per day. the pizza den nearby will deliver whole pizzas for $9.00 each. the cafeteria staff cuts the pizza into eight slices and serves them in the usual cafeteria line. with no cooking duties, the staff can be reduced by half, for a fixed cost of $75 per day. should the school cafeteria make or buy its pizzas?