Find the odd one out.

Options

A. Glucocorticoids, Mineralocorticoids, Sexcorticoids
B. Nor-epinephrine, Epinephrine, Adrenaline
C. Relaxin, Oestrogen, Progestrone
D. Insulin, Glucagon, Thymosin

Answer

To find the odd one out from the given options, we will analyze each set of hormones based on their source of production.

### Step-by-Step Solution:

1. **Identify the First Set of Hormones:**
- **Hormones:** Glucocorticoids, Mineralocorticoids, Sex Steroids
- **Source:** All these hormones are produced by the adrenal glands, specifically from the adrenal cortex.
- **Conclusion:** No odd one out in this set.

2. **Identify the Second Set of Hormones:**
- **Hormones:** Norepinephrine, Epinephrine, Adrenaline
- **Source:** These hormones are produced by the adrenal glands, specifically from the adrenal medulla.
- **Conclusion:** No odd one out in this set.

3. **Identify the Third Set of Hormones:**
- **Hormones:** Relaxin, Estrogen, Progesterone
- **Source:** All these hormones are produced in the ovaries, with relaxin being released from the corpus luteum, and estrogen and progesterone also being produced there.
- **Conclusion:** No odd one out in this set.

4. **Identify the Fourth Set of Hormones:**
- **Hormones:** Insulin, Glucagon, Thymosin
- **Source:** Insulin and glucagon are produced by the pancreas, while thymosin is produced by the thymus gland.
- **Conclusion:** Thymosin is the odd one out because it is produced by a different gland (thymus) compared to insulin and glucagon (pancreas).

### Final Answer:
The odd one out is **Thymosin**.

---