A 15-year-year-old girl complains of painful swollen knee joints. She has a rash over her cheeks, but no joint deformity is seen. Laboratory tests show low C3 and C4. Which condition should be strongly considered?AJuvenile idiopathic arthritisBSystemic lupus erythematosus (SLE)CHenoch-Schönlein purpuraDAcute rheumatic feverEPsoriatic arthritisCheck my answer