What Must Be Done When Vaccines Are Stored in a Freezer

What must be done when vaccines are stored in a freezer?

A) The ideal temperature for frozen vaccines is -58 $\degree$ F to 5 $\degree$ F.
B) Leave 2 to 3 inches between the vaccine and the freezer wall.
C) Use water bottles in the freezer to help maintain the temperature.
D) All of the above
E) A and B