The 68-years-old patient has been suffering from hypertension for 10 years. A proteinuria (0.3 g/l), hematuria, and casts detected at the regular screening urine test. The urine relative density ranged 1008-1012 in the Zimnitsky’s test, serum creatinine – 348 μmol/l. What is your diagnostic assumption? * A.Nephroagiosclerosis, III stage essential hypertension B.Chronic glomerulonephritis C.Acute pyelonephritis D.Acute glomerulonephritis E.II stage essential hypertension