Let's match each hormone to its related disorder:
- Thyroxine: Deficiency leads to Myxedema (IV), a condition caused by hypothyroidism.
- Vasopressin: Its deficiency or malfunction causes Diabetes insipidus (V), characterized by excessive thirst and urination.
- Glucocorticoids: Excess or deficiency relates to Addison's disease (I), an adrenal insufficiency disorder.
- Somatotropin (Growth hormone): Excess leads to Acromegaly (III), characterized by abnormal growth of bones and tissues.
Thus, the correct matching is:
A - IV, B - V, C - I, D - III