Psychotic symptoms

A client is receiving haloperidol to reduce psychotic symptoms.  As the client watches television with others the nurse notes that the client is restless, constantly moving and changing position. When the nurse ask what is wrong, the client states feeling jittery.  How should the nurse manage this situation?

A. Ask the client to sit still or leave the room because the client is distracting the other clients.
B. Assess the clients cardiac and respiratory system.
C. Administer an as needed dose of a prescribed beta adrenergic blocker.
D.  Administer an as needed dose of haloperidol