In man developing embryo remains in

Options

A. Vagina
B. Uterus
C. Fallopian tube
D. Ovaries

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where the developing embryo remains in humans, specifically in males. However, it is important to note that the developing embryo actually develops in females.

2. **Fertilization**: The process begins with fertilization, where the male and female gametes (sperm and egg) combine to form a zygote.

3. **Development Stages**: After fertilization, the zygote undergoes several stages of development. It first becomes a morula and then develops into a blastocyst.

4. **Implantation**: The blastocyst then travels to the uterus, where it attaches to the endometrium, which is the inner lining of the uterus.

5. **Embryo Development**: Once attached, the outer layer of the blastocyst forms the placenta, while the inner layer develops into the embryo. The embryo remains in the uterine cavity for the duration of the pregnancy.

6. **Completion of Development**: The embryo continues to grow and develop into a fetus within the uterus until it is fully developed.

7. **Birth Process**: After complete development, the fetus and placenta release hormones that trigger labor, leading to the delivery of the baby through the cervix and vagina.

8. **Conclusion**: Therefore, the correct answer to the question is that the developing embryo remains in the uterus.

**Final Answer**: The developing embryo remains in the uterus.

---