What Would Be the Appropriate Interpretation for the Following Order

What would be the appropriate interpretation for the following order? Demerol 50 mg IM stat? Administer:_______________

A) Demerol 50 mg IM when needed
B) Demerol 50 mg IM as desired
C) Demerol 50 mg IM on call to OR
D) Demerol 50 mg IM immediately