<prompt> Sebborhoic Dermatitis is produced by deficiency of:Vitamin CVitamin B1Vitamin B2Vitamin A  <response>: Vitamin B2 deficiency: Riboflavinosis is characterized by following clinical manifestations: Corneal vascularization - earliest sign of deficiency. Glossitis - inflammation of tongue magenta tongue- characteristic, Cheilosis - redness and shiny appearance of lips. Angular stomatitis- lesions at mucocutaneous junction at corners of mouth, leading to painful fissures. Seborrhoic dermatitis - rough scaly skin because of desquamation. 