Genu valgum refers to:

Rationale: A. Inward or outward toeing refers to metatarsus adductus or rotational deformities of the feet, not genu valgum. B. Bow-leggedness is called genu varum, not genu valgum. C. Genu valgum is commonly referred to as knock knees, where the knees angle inward and touch each other when the legs are straightened. D. Clubfoot (talipes equinovarus) is a congenital deformity of the foot, unrelated to knee alignment.