Norepinephrine
(i) is released by sympathetic fibers
(ii) is released by parasympathetic fibers
(iii) increases the heart rate
(iv) decreases blood pressure.

Which of the above statements are correct?

• A

  (i) and (iii)

• B

  (ii) and  (iii)

• C

  (ii) and (iv)

• D

  (i) and (iv)