Human beings are

Options

A. Ovoviviparous
B. Oviparrous
C. Parthenogenetic
D. Viviparous.

Answer

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- First, let's clarify the terms related to reproduction:
- **Oviparous:** Animals that lay eggs with a significant amount of yolk, allowing for embryo development outside the mother's body (e.g., birds, reptiles).
- **Viviparous:** Animals that give birth to live young, where the embryo develops inside the mother's body (e.g., humans).
- **Parthenogenetic:** A form of asexual reproduction where an embryo develops from an unfertilized egg (e.g., some insects, like bees).

2. **Analyzing the Options:**
- The options provided are:
- A. Oviparous
- B. Oviparous
- C. Parthenogenetic
- D. Viviparous
- Notice that options A and B are the same, which might be a typographical error.

3. **Identifying Human Reproduction:**
- Human beings do not lay eggs with yolk; instead, the embryo develops inside the female body. This indicates that humans are not oviparous.
- Since humans give birth to live offspring, they are classified as viviparous.

4. **Conclusion:**
- Based on the definitions and the reproductive process of humans, the correct answer is **D. Viviparous**.