Match the columns I and II, and choose the correct combination from the options given.
`{:(,"Column I","Column II:"),(,(a)"LH",(1)"Smooth muscle contraction"),(,(b)"FSH",(2)"Milk ejection"),(,(c )"MSH",(3)"Spermatogensis"),(,(d)"Oxytocin",(4)"Ovulation"),(,(e)"Estrogen",(5)"Pigmentation of skin"):}`

Options

A. a-3,b-3,c-1,d-5,e-2
B. a-3,b-4,c-1,d-5,e-2
C. a-4,b-3,c-5,d-2,e-1
D. a-3,b-4,c-5,d-2,e-1

Explanation

To solve the problem of matching the hormones in Column I with their corresponding functions in Column II, we can follow these steps:

### Step-by-Step Solution:

1. **Identify LH (Luteinizing Hormone)**:
- LH is known to play a crucial role in the regulation of the menstrual cycle and ovulation in females.
- **Match**: LH → Ovulation (4).

2. **Identify FSH (Follicle Stimulating Hormone)**:
- FSH is essential for the growth and maturation of ovarian follicles in females and for spermatogenesis in males.
- **Match**: FSH → Spermatogenesis (3).

3. **Identify MSH (Melanocyte Stimulating Hormone)**:
- MSH is involved in the regulation of skin pigmentation by stimulating melanocytes to produce melanin.
- **Match**: MSH → Pigmentation of skin (5).

4. **Identify Oxytocin**:
- Oxytocin is released during childbirth and breastfeeding, facilitating milk ejection and uterine contractions.
- **Match**: Oxytocin → Milk ejection (2).

5. **Identify Estrogen**:
- Estrogen is involved in various functions, including the regulation of the menstrual cycle and the contraction of smooth muscles during labor.
- **Match**: Estrogen → Smooth muscle contraction (1).

### Final Matches:
- a) LH → 4 (Ovulation)
- b) FSH → 3 (Spermatogenesis)
- c) MSH → 5 (Pigmentation of skin)
- d) Oxytocin → 2 (Milk ejection)
- e) Estrogen → 1 (Smooth muscle contraction)

### Conclusion:
The correct combination of matches is:
- a-4, b-3, c-5, d-2, e-1.