A deficiency in which vitamin can lead to cheilosis and glossitis?

A deficiency in Vitamin B2, also known as riboflavin, can lead to symptoms such as cheilosis and glossitis. Cheilosis refers to the cracking and inflammation of the lips, while glossitis refers to the inflammation of the tongue, which may appear swollen and change color. Vitamin B2 plays a crucial role in maintaining healthy mucous membranes and overall oral health. When the body lacks sufficient riboflavin, it can manifest in these specific oral conditions due to its imperative function in cellular metabolism and the maintenance of skin and mucosal integrity.

In contrast, while other vitamins are important for general health, they do not specifically lead to these particular oral manifestations when deficient, making riboflavin the correct answer for this question.