Fact 1: Arefrigerator is used for keeping food fresh for a long period of time. Fact 2: Cold temperatures keep food fresh and inhibit the growth of most bacteria. Given the two facts above, a refrigerator is used for inhibiting the growth of what on food?

Available choices:
A). some invertebrates;
B). viruses;
C). molds;
D). spores;
E). Echinoids;
F). most bacteria;
G). Nematoda;
H). cones;
The answer is:
F).