Select the correct text in the passage.

which rule is specifically designed to prevent contamination?

a group of 7th-grade students is to prepare lunch in the school cafeteria. the nutrition director gives them a handbook with rules to follow while in the kitchen—the cafeteria handbook for safety.

a. students must adhere to these safety guidelines while assisting in the kitchen: there is a limit of five students in the kitchen at one time;

b. only one student may work per workspace

c. students should wear new pairs of gloves when working with a new food

and

d. students should measure each ingredient and follow the recipe exactly.

A35-year-old woman comes to the ed complaining of chest pressure. she has had such episodes intermittently over the last 5 years, usually when sleeping, but over the last year she has had more frequent severe symptoms that are occasionally associated with severe migraine headaches. the pain is midsternal and is described as pressure that extends as a band around her chest. the ed physician is initially dubious that the pain is cardiac in origin, because the woman has no coronary disease risk factors. an ecg, however, shows 2mm st-segment elevation and inverted t waves in leads v1 through v5 and 1mm st-segment depression in leads ii, iii, and avf. before the cardiologist arrives in the ed, the patient's ecg has returned to normal. this repeat normal ecg is obtained after the administration of aspirin, nitroglycerin, morphine, and oxygen. which of the following is most likely for these findings? - diffuse intimal thickening with focal areas of atherosclerotic narrowing - intermittent thrombus formation and lysis in the left anterior descending artery - intermittent thrombus formation and lysis in the right coronary artery - plaque rupture and thrombus formation in the left anterior descending artery - transiently increased coronary vascular tone in the right coronary artery