Which of the following features are correct? Choose correct option. a. The urine formed by the nephrons is finally carried to the urinary bladder by the ureters. b. Micturition is the process of excretion of urine from the urinary bladder. c. The neural mechanism causing micturition is called the micturition reflex. d. An adult human excretes, on an average, 1 to 1.5 litres of urine per day.