What is the Age of man :

Options

A. Proterozoic
B. Recent
C. Mesozoic
D. 100 years

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the "Age of man," which refers to the geological period during which humans have existed on Earth.

2. **Analyzing the Options**:
- **Option 1: Proterozoic**: This geological era spans from about 2.5 billion years ago to 541 million years ago. It is characterized by the appearance of oxygen in the atmosphere but does not pertain to the age of man. Therefore, this option is incorrect.

- **Option 2: Recent**: This term is often used to refer to the most current geological epoch, including the time of human existence. This is the correct answer as it encompasses the age of man.

- **Option 3: Mesozoic**: Known as the age of reptiles, this era lasted from about 252 to 66 million years ago. It is not related to the age of man, making this option incorrect.

- **Option 4: 100 years**: This is a measure of time known as a century and does not relate to geological time periods or the age of man. Hence, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is **Option 2: Recent**, as it accurately reflects the age of man.