Hominids evolved during

Options

A. Oligocene
B. Pliocene
C. Pleistocene
D. Miocene.

Explanation

**Step-by-Step Solution:**

1. **Understanding Hominids**: Hominids refer to members of the biological family Hominidae, which includes modern humans, our immediate ancestors, and other extinct relatives.

2. **Identifying Geological Periods**: The question provides four geological periods: Oligocene, Pliocene, Pleistocene, and Miocene. It is essential to know the timeframes of these periods to determine when hominids evolved.

3. **Analyzing the Timeframe of Hominid Evolution**: Research indicates that the recent ancestors of hominids appeared around 7 million years ago. This timeframe is crucial for identifying the correct geological period.

4. **Locating the Pliocene Period**: The Pliocene period is defined as occurring from about 5.3 million to 2.6 million years ago. Since the emergence of hominids is around 7 million years ago, it falls within the context of the Pliocene.

5. **Eliminating Other Options**:
- Oligocene (approximately 34 to 23 million years ago) is too early for hominid evolution.
- Pleistocene (about 2.6 million to 11,700 years ago) is too late for the initial emergence of hominids.
- Miocene (approximately 23 to 5.3 million years ago) is also too early for the specific emergence of hominids.

6. **Conclusion**: Based on the analysis, the correct answer is the Pliocene period, as it aligns with the timeline of hominid evolution.

**Final Answer**: Hominids evolved during the Pliocene period.

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