Wisdom teeth are
(a) last molars
(b) last premolars
(c) incisors
(d) canines

Options

A. last molars
B. last premolars
C. incisors
D. canines

Explanation

To determine what wisdom teeth are, let's analyze the options provided:

1. **Understanding Wisdom Teeth**: Wisdom teeth are commonly known as the third molars. They typically emerge in late adolescence or early adulthood, usually between the ages of 17 and 25.

2. **Identifying the Options**:
- (a) Last molars
- (b) Last premolars
- (c) Incisors
- (d) Canines

3. **Analyzing Each Option**:
- **Option (a) Last molars**: This is correct. Wisdom teeth are indeed the last molars in the dental arch.
- **Option (b) Last premolars**: This is incorrect. Premolars are not the same as molars, and wisdom teeth are not premolars.
- **Option (c) Incisors**: This is incorrect. Incisors are the front teeth and are not related to wisdom teeth.
- **Option (d) Canines**: This is incorrect. Canines are pointed teeth located next to the incisors and are not molars.

4. **Conclusion**: Since wisdom teeth are the last molars in each quadrant of the mouth, the correct answer is **(a) last molars**.