Example of IgA nephropathy is -

Ans. is 'a' i.e., Henoch Schonlein purpura o There is deposion of IgA, sometimes with IgG and C3, in the mesangial region in HSP.o IgA is deposited in the glomerular mesangium in a distribution similar to that of IgA nephropathy. This has led to the concept that IgA nephropathy and Henoch-Schonlein purpura are spectra of the same disease.