An 8-year-old boy presents to the nurse practitioner with acute onset of "really itchy" small erythematous plaques, predominantly on the trunk. Approximately 2 weeks ago, the boy was treated for tonsillitis. Which of the following most closely explains his condition?

Psoriasis vulgaris presents with erythematous scaly plaques on the trunk and extensor surfaces of the limbs.

Generalized pustular psoriasis presents with an acute and rapidly progressive course characterized by diffuse redness and subcorneal pustules, and is often accompanied by systemic symptoms.

This presentation is guttate psoriasis triggered by group A Streptococcal infection of tonsils.

Inverse psoriasis affects the folds of the skin.