A 25 yo man with dyspnea, ankle oedema, ascitis. On auscultation - bilateral crackles. On CXR – bilateral infiltrates, although heart shape is normal. In urine blood +++, protein +++. Dx?
a. SLE
b. IgA nephropathy
c. poststrep GN
d. polyarteritis nodosa
e. anti-glomerular basement dx.