In the following process of synthesis of norepinephrine identify the markings correctly
Transport of dopamine into the vesicles
Dopamine Norepinephrine
If I. Tyrosine, II. Hydroxylation, III. Decarboxylation, IV. Phenylacanin
| | A | B | C | D |
| (a) | IV | II | III | III |
| (b) | I | II | III | III |
| (c) | I | III | II | II |
| (d) | IV | III | II | II |