The right option is d. norovirus infection
Noroviruses are viruses that
cause gastroenteritis ; a condition that causes vomiting, fever and stomach
pain. Norovirus is highly contagious. It spreads through contaminated food or
water and through close contact with an infected person. Norovirus is the
common cause of epidemics of gastroenteritis on cruise ships and it is the most
common food-borne illness in the united states.
A long carbon and hydrogen chain and a carboxyl group.
In images of fatty acids (the monomers of Lipids), it is depicted as a long carbon chain with hydrogen on the ends and connected to them as well, yet on the clear side is the carboxyl group.
Hope this helps!
