单项选择题

A client receiving haloperidol (Haldol) complains of a stiff jaw and difficulty swallowing. Which of the following should be the nurse's first action

A.Reassure the client and administer as-needed lorazepam (Ativan) IM.
B.Administer as-needed dose of benztropine (Cogentin) by mouth as ordered.
C.Administer as-needed dose of benztropine (Cogentin) IM as ordered.
D.Administer as-needed dose of haloperidol (Haldol) by mouth.