A 55 year old female presents with the following red-brown nodules on her elbows and similar appearing nodules and plaques on her ankles. She denies recent travel or any new sexual partners. She does note mild arthralgias associated with the rash. She is started on dapsone with some improvement. Which of the following is the best diagnosis?
A. Erythema induratum
B. Erythema elevatum diutinum
C. Ertyhema nodosum
D. Erythema annulare centrifigum
E. Erythema dyschromicum perstans