Correct Option
Milk is a source of several B-vitamins, including vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B6, and vitamin B12. Therefore, the statement that milk contains none of the B-vitamins is incorrect. This makes option (1) the correct answer to the question asking for the incorrect statement.
Incorrect Options
Option (2): Vitamin A (retinol) is crucial for maintaining the health of epithelial tissues. Its deficiency can lead to xerosis (dryness) and hyperkeratosis (scaly skin), in addition to night blindness. Thus, this statement is correct.
Option (3): Scurvy, caused by a deficiency of vitamin C, manifests with symptoms such as bleeding gums, fatigue, poor wound healing, and joint pain due to weakened connective tissues. Therefore, pain in the joints is a known symptom of scurvy, making this statement correct.
Option (4): Vitamin B1 (thiamine) deficiency leads to a condition called beriberi. The 'wet' form of beriberi specifically affects the cardiovascular system, causing symptoms like edema, heart enlargement, and potentially leading to heart failure. Hence, this statement is correct.