A patient visits a clinic for assessment of an inflammatory skin disorder. The nurse diagnoses the condition as psoriasis based on the appearance of the skin. Which of the following describes the dermatoses?

a) Papules and pustules on an erythematous base
b) Silvery scales on an erythematous base
c) Honey-colored crusts with erythematous borders
d) Violaceous, flat-topped papules with fine white scales