With the Patient in a Supine Position, How Does a Nurse

With the patient in a supine position, how does a nurse test the external rotation of the patient's right hip?

A) Asking the patient to move the right leg laterally with the right knee straight
B) Asking the patient to flex the right knee and turn medially toward the left side (inward)
C) Asking the patient to place the right heel on the left patella
D) Asking the patient to raise the right leg straight up and perpendicular to the body