A) Incorrect. Hyperlipidemia in nephrotic syndrome results from increased hepatic synthesis of lipoproteins and is not directly related to decreased serum albumin levels.

B) Correct. Hypoalbuminemia reduces the colloid osmotic pressure in the blood vessels, causing fluid to leak into the interstitial spaces, leading to edema formation, a hallmark of nephrotic syndrome.

C) Incorrect. Hypertension may occur in nephrotic syndrome due to sodium and water retention, but it is not directly related to decreased serum albumin levels.

D) Incorrect. Hematuria (blood in the urine) is not a direct consequence of hypoalbuminemia but may be present in some cases of nephrotic syndrome due to underlying glomerular damage.