When Is the Medication Label to Be Read

When is the medication label to be read?

A) When pouring, administering, and putting the drug back on the shelf  
B) When taking from the shelf, after pouring, and after administering the drug  
C) When checking the order, when pouring, and before putting the drug back on the shelf  
D) When the medication is taken from the storage area, just before removing it from its container, and when returning the medication to the storage area