Age of man' in geology is `:`

Options

A. Proterozoic
B. Mesozoic
C. Coenozoic
D. Psychozoic

Answer

### Step-by-Step Solution:

1. **Understanding Geological Time Scale**: The geological time scale is divided into several eras, periods, and epochs that represent the history of Earth and the evolution of life.

2. **Identifying the Era of Man**: The question specifically asks for the age of man in geology. The era that is most commonly associated with the existence of modern humans is known as the "Psychozoic Era."

3. **Defining the Psychozoic Era**: The Psychozoic Era is characterized by the presence of humans and is primarily associated with the Quaternary period. This period is divided into two epochs: the Pleistocene and the Holocene.

4. **Explaining the Quaternary Period**: The Quaternary period, which is part of the Psychozoic Era, includes:
- **Pleistocene Epoch**: This epoch is marked by the last Ice Age and the emergence of early humans.
- **Holocene Epoch**: This is the current epoch, which began approximately 11,700 years ago and is characterized by the development of human civilizations.

5. **Conclusion**: Therefore, the age of man in geology is referred to as the Psychozoic Era, which encompasses the Quaternary period, including both the Pleistocene and Holocene epochs.

### Final Answer:
The age of man in geology is the **Psychozoic Era**.

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