Which of the Following Principles of Medication Administration Will Be

Which of the following principles of medication administration will be taught to a patient who will be administering his own subcutaneous (SC) injections?

A) Use a 22 G,5/8-inch needle.
B) Rotate sites among the upper arm,abdomen,and anterior thigh.
C) Avoid injecting within 3 inches of a previous injection site.
D) Insert the needle at a 30-degree angle to the skin.