Realistically, What Might Be Done in a Situation in Which

Realistically, what might be done in a situation in which a nurse does not know the appropriate way to use a new ultrasonic bladder scanner (a noninvasive, painless procedure) but has a new order at 2 a.m. to perform a scan?

A) Refuse to carry out the order.
B) Ask a coworker who has used the equipment.
C) Access the instructions on the company's Internet site.
D) Try to scan the bladder and decide if the value obtained makes sense.
E) Notify the manager that a formal inservice is needed.
F) Read the instruction booklet.