Final answer:
The authority to sign a triplicate DEA Form-222 in order to obtain CII drugs from another registrant can be given to a pharmacist or non-pharmacist through a properly executed power of attorney. Additionally, the pharmacist or non-pharmacist who signed the most recent DEA application for a controlled substance registration can also sign the form. A pharmacist can also receive verbal authorization from the owner or manager of a pharmacy registrant.
Step-by-step explanation:
The authority to sign a triplicate DEA Form-222 in order to obtain CII drugs from another registrant can be given to a pharmacist or non-pharmacist through a properly executed power of attorney. This means that option 'a.' is correct. Additionally, option 'b.' which states that the pharmacist or non-pharmacist who signed the most recent DEA application for a controlled substance registration can also sign the form is also correct. Lastly, option 'c.' which suggests that a pharmacist can receive verbal authorization from the owner or manager of a pharmacy registrant is also true.