Match the following:
| Column I | Column II | | (a) T4 | (i) Hypolhalamus | | (b) PTh | (ii) Thyrold | | (c) GnRH | (iii) Pituitary | | (d) LH | (iv)Parathyrold |
(a) – (ii)
(b) – (iv)
(c) —(i)
(d) – (iii)