Nafisa's restaurant is catering for an offsite event, and she's in charge of handling the salads. She removes the Caesar salad from the cooler at 1:15 p.m. and measures it at 37°F (3°C). By what time should she serve the salad?
a. 7:15 p.m.
b. 8:15 p.m.
c. 10:15 p.m.
d. 11:15 p.m.