Consider the following statements: A - Glomerular filtration rate (GFR) is about 125 ml/minute or 180 litres per day. B - Reabsorption of water in the collecting duct is under the control of ADH. C - The ascending limb of Henle's loop is permeable to water but impermeable to electrolytes. D - The process of micturition is a reflex action and is carried out by the micturition reflex.