The students at the highest risk for illness is b. and d.
b. Consuming undercooked ground beef, like a very rare hamburger, increases the risk of foodborne illnesses such as E. coli and Salmonella infections. Ground beef should be cooked to an internal temperature of 160°F (71°C) to minimize the risk.
d. Very soft-poached eggs may not be cooked thoroughly, which can increase the risk of Salmonella infection. To reduce the risk, eggs should be cooked until both the yolk and the white are firm.