The thigh bone is the

Rationale:
A. Cyanosis refers to a bluish discoloration of the skin, typically caused by low oxygen levels in the blood.
B. A hematoma is a localized collection of blood outside blood vessels, appearing as a bruise, not generalized paleness.
C. Pallor is the medical term for paleness of the skin. It can be caused by decreased blood flow, anemia, shock, or illness and is most noticeable in areas such as the face, palms, or mucous membranes.
D. Bronzing refers to a golden-brown skin discoloration, commonly associated with Addison’s disease or certain metabolic conditions.

Rationale:
A. Flexion refers to decreasing the angle between two body parts, such as bending the elbow or knee.
B. Extension is the opposite of flexion, involving an increase in the angle between body parts, such as straightening the arm or leg.
C. Abduction is the movement of a body part away from the midline of the body, like lifting the arm or leg sideways.
D. Adduction involves moving a body part toward the midline of the body, such as bringing the arms back down to the sides or crossing the legs together. This movement is essential for coordinated limb positioning and maintaining balance.