Correct option is A
Vitamin A is essential for vision, immune system functioning, and skin health, but it is not associated with rheumatism. Rheumatism refers to a range of disorders affecting the joints, including rheumatoid arthritis, which is more related to autoimmune conditions and inflammation, not a deficiency in Vitamin A.
Vitamin B₁ (Thiamine): Its deficiency causes beriberi, which affects the heart and nervous system. This condition was once common in populations relying heavily on polished rice, which lacks thiamine.
Vitamin C: Deficiency leads to scurvy, which manifests as bleeding gums, anemia, and poor wound healing. Vitamin C is crucial for collagen formation.
Vitamin D: Deficiency of Vitamin D leads to rickets in children, a condition that causes bones to become soft and weak, resulting in deformities like bowed legs.