The correct option is B DCT
The Bowman's capsule empties the filtrate into the proximal tubule and thus, is said to be the first part of the nephron. The distal convoluted tubule (DCT) is a portion of the nephron between the loop of Henle and the collecting duct system. Vasa recta are a series of straight capillaries in the medulla that supplies blood to the kidney and lies parallel to the loop of Henle.