Which is NOT TRUE of pemphigus and pemphigoid?

• A. the prognosis of pemphigoid is better
• B. pemphigous lesions are intra dermal where as the lesions in pemphigoid are subdermal
• C. mucosa is more often involved in pemhigous
• D. clinically the two can be usually differentiated with a good examination
• E. they are both autoimmune disorders