The shortest gestation period is seen in

Options

A. Man
B. Elephant
C. Cat
D. Mouse

Explanation

**Step-by-Step Solution:**

1. **Understanding Gestation Period**: The gestation period is defined as the time between fertilization (when the sperm fertilizes the egg) and parturition (the act of giving birth). It varies significantly among different species.

2. **Comparing Gestation Periods of Various Species**:
- **Humans**: The gestation period is approximately 9 months (around 40 weeks).
- **Elephants**: The gestation period is notably long, ranging from 18 to 22 months.
- **Cats**: The gestation period is shorter, typically between 58 to 67 days.
- **Mice**: The gestation period is the shortest among the mentioned species, lasting about 18 to 21 days.

3. **Identifying the Shortest Gestation Period**: From the comparisons made:
- The elephant has the longest gestation period (18 to 22 months).
- The human gestation period is 9 months.
- The cat has a gestation period of about 2 months.
- The mouse has the shortest gestation period of 18 to 21 days.

4. **Conclusion**: Based on the information gathered, the species with the shortest gestation period is the mouse.

**Final Answer**: The shortest gestation period is seen in **mice**.

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