Thyroid hormones (T3 and T4) have effects on

1. basal metabolic rate
2. normal growth and development
3. energy use
4. all of the above
5. none of the above

Which of the following is/are Correct?

1. the pituitary gland produces melatonin.
2. the suprachiasmatic nucleus (SCN) in the hypothalamus is involved in the regulation of the day-night cycle.
3. Melatonin levels are associated with seasonal affective disorder.

a) 1only

b) 2 only

c) 1 and 2 only

d) 2 and 3 only

e) 1, 2, and 3