The technique to assist those females who cannot conceive, includes

Options

A. IVF followed by embryo transfer
B. In-vivo fertilization followed by embryo transfer
C. Gamete intra fallopian transfer
D. Intral uterine insemination

Explanation

**Step-by-Step Solution:**

1. **Understanding the Problem:**
- The question asks for the techniques that assist females who cannot conceive. This involves understanding various reproductive technologies available for infertility treatment.

2. **Identifying Techniques:**
- The main techniques mentioned for assisting females who cannot conceive include:
- In Vitro Fertilization (IVF)
- In Vivo Fertilization
- Gamete Intrafallopian Transfer (GIFT)
- Intrauterine Insemination (IUI)

3. **Explaining In Vitro Fertilization (IVF):**
- IVF is a process where eggs are fertilized by sperm outside the body, in a laboratory setting. The fertilized egg (zygote) is then transferred to the uterus after reaching the 8-cell stage. This method is widely used for women who face difficulties in conceiving naturally.

4. **Explaining In Vivo Fertilization:**
- In Vivo Fertilization refers to natural fertilization that occurs within the body. The sperm and egg meet in the fallopian tube, leading to the formation of a zygote, which then travels to the uterus. This method is not typically used for assisted reproductive technology.

5. **Explaining Gamete Intrafallopian Transfer (GIFT):**
- GIFT involves placing both sperm and eggs directly into the fallopian tubes. This technique relies on the natural fertilization process occurring within the body after the gametes are introduced.

6. **Explaining Intrauterine Insemination (IUI):**
- IUI is a procedure where prepared sperm is directly injected into the uterus, close to the time of ovulation. This method is often used when there are issues with sperm count or motility.

7. **Comparing Techniques:**
- Among the techniques discussed, IVF is noted for its higher success rates and is often recommended for women who have difficulty conceiving. GIFT is also a viable option but is less commonly used than IVF.

8. **Conclusion:**
- The most effective technique for assisting females who cannot conceive is **In Vitro Fertilization (IVF)**, followed by embryo transfer.

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