Which of the following options correctly matches the name of the hormone to its site of production in the human body ?

The correct option is P-iii, Q-iv, R-i, S-ii.

Let's analyze the hormones listed on the left column (P, Q, R, S) and match them with their respective sites of production listed on the right column (i, ii, iii, iv) from the image:
1. Oxytocin (P): Oxytocin is synthesized by the hypothalamus and transported to the posterior Pituitary Gland (iii), where it is stored and released into the bloodstream. Thus, P matches with iii.
2. Relaxin (Q): Relaxin is a peptide hormone that is primarily secreted by the corpus luteum in the Ovaries (iv) during pregnancy. Thus, Q matches with iv.
3. hCG (human Chorionic Gonadotropin) (R): hCG is a hormone produced during pregnancy by the cells of the Placenta (i) after implantation. Thus, R matches with i.
4. Progesterone (S): Progesterone is a key steroid hormone secreted mainly by the Corpus Luteum (ii) in the ovary after ovulation to maintain the uterine lining. Thus, S matches with ii.

Combining all the matched pairs, we get:
P-iii, Q-iv, R-i, S-ii