Which of the Following Is Not a Guideline for Proper $\degree$

Which of the following is not a guideline for proper vaccine storage and handling?

A) Store refrigerated vaccines between 35 $\degree$ F and 46 $\degree$ F (2 $\degree$ C and 8 $\degree$ C)
B) Store frozen vaccines between -58 $\degree$ F and +5 $\degree$ F (-50 $\degree$ C and -15 $\degree$ C)
C) Prepare vaccines just prior to administration to the patient
D) Follow infection control guidelines when preparing and administering vaccines
E) Rotate your supply of vaccines so those with the longest expiration date are used first