Final answer:
The term 'Distal' correctly answers the question as it refers to a position that is farthest from the body's center or point of reference, such as the crus being distal to the femur.
Step-by-step explanation:
The correct answer to the question, 'Positioned farthest from the center of the body or point of reference' is a) Distal. Distal describes a position in a limb that is farther from the point of attachment or the trunk of the body. For instance, the crus is distal to the femur. In contrast, proximal refers to a position in a limb that is nearer to the point of attachment or the trunk of the body, such as the brachium being proximal to the antebrachium. Medial describes the middle or direction toward the middle of the body, and lateral describes the side or direction toward the side of the body. Distal specifically indicates the position farthest from the body's center or a point of reference.