【单选题】

During a panic attack, a client runs to the nurse and reports breathing difficulty, chest pains, and palpitations. The client also is pale and has a wide open mouth and raised eyebrows. What should the nurse do first

A、Assist with deep breathing into a paper bag.
B、Orient the client to person, place, and time.
C、Set limits for acting out delusional behaviors.
D、Administer an anxiolytic agent IM.