In which part of the tongue, the bitter taste is perceived?

Options

A. Tip of the tongue
B. Either side of the front part of the tongue
C. Either side of the posterior part of the tongue
D. Posterior part of the tongue.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the specific part of the tongue where the bitter taste is perceived.

2. **Identifying Taste Zones on the Tongue**: The tongue has different regions that are sensitive to different tastes. This is often referred to as the "tongue map."

3. **Analyzing the Options**:
- **Option A**: Tip of the tongue - This area is primarily associated with sweet tastes.
- **Option B**: Either side of the front part of the tongue - This area is associated with salty and sour tastes.
- **Option C**: Either side of the posterior part of the tongue - This area does not specifically correspond to the bitter taste.
- **Option D**: Posterior part of the tongue - This is the area where bitter tastes are primarily perceived.

4. **Conclusion**: Based on the understanding of the tongue's taste zones, the correct answer is **Option D: Posterior part of the tongue**.

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