Answer: B. review the drugs in each group with the client to ensure accuracy.
Step-by-step explanation:
After sorting the drugs into two of the groups of medications, in which the two groups includes the drugs which are prescribed for the client and those which are not of any use. The review of the client's drug is important so as to avoid any mistake an ensuring proper sorting.
After ensuring the sorting of drugs the drugs no longer used by the client must be kept away at a safe location in order to prevent mix up with the required drugs.