A 24 year old college student complains of fatigue, ahralgias, mucosal ulcerations, and a facial rash. Biopsy of the rash reveals linear deposition of IgG and complement at the dermal-epidermal junction. Which of the following is TRUE concerning this disease?
A
Women and men are equally affected
B
Skin biopsy findings are pathognomonic
C
Biopsy specimen of non-involved skin will be normal
D
Serum complement levels decrease with disease flares