The Temperature of the Laboratory Refrigerators Should Be Maintained Between $\degree$

The temperature of the laboratory refrigerators should be maintained between ____.

A) 10 $\degree$ F and 15 $\degree$ F
B) 24 $\degree$ F and 28 $\degree$ F
C) 36 $\degree$ F and 46 $\degree$ F
D) 50 $\degree$ F and 56 $\degree$ F
E) 60 $\degree$ F and 65 $\degree$ F