Holocene is

Options

A. golden age of mammals
B. golden age of reptiles
C. epoch of human civilization
D. age of fishes and amphibians

Explanation

To answer the question "Holocene is:", we will analyze each of the provided options step by step.

### Step 1: Understanding the Holocene Epoch
The Holocene is the current geological epoch that began approximately 11,700 years ago after the last major ice age. It is characterized by the development of human civilizations and significant changes in climate and environment.

**Hint:** Remember that the Holocene is associated with the rise of human civilization and significant environmental changes.

### Step 2: Evaluating the First Option
The first option states that the Holocene is the "first golden age of mammals." This is incorrect because the Cenozoic Era, which includes the Holocene, is often referred to as the "Age of Mammals," but it is not specifically the "first golden age."

**Hint:** Cenozoic is the era known for mammals, but Holocene is just one epoch within that era.

### Step 3: Evaluating the Second Option
The second option claims that the Holocene is the "golden age of reptiles." This is also incorrect. The Mesozoic Era is known as the "Age of Reptiles," which includes the time when dinosaurs dominated the Earth.

**Hint:** Mesozoic is the era associated with reptiles, not Holocene.

### Step 4: Evaluating the Third Option
The third option states that the Holocene is the "epoch of human civilization." This is correct. The Holocene has seen the rise of agriculture, cities, and advanced human societies.

**Hint:** Focus on the human developments and civilizations that emerged during the Holocene.

### Step 5: Evaluating the Fourth Option
The fourth option suggests that the Holocene is the "age of fishes and amphibians." This is incorrect. The Devonian Period is known as the "Age of Fishes," which is much earlier than the Holocene.

**Hint:** Devonian is the period known for fishes and amphibians, not Holocene.

### Conclusion
After evaluating all the options, the correct answer is that the Holocene is the "epoch of human civilization."

**Final Answer:** The Holocene is the epoch of human civilization (Option 3).