**Types of Teeth**

Teeth are an important part of our digestive system and help us in chewing and breaking down food. Humans have different types of teeth that are specialized for different functions. Let's explore the various types of teeth:

**1. Incisors:**
- Incisors are the sharp, thin, and flat teeth located at the front of the mouth.
- They are used for biting and cutting food.
- Humans have a total of 8 incisors (4 on the upper jaw and 4 on the lower jaw).

**2. Canines:**
- Canines are the pointed, sharp teeth located on either side of the incisors.
- They have a single pointed cusp and are used for tearing and gripping food.
- Humans have a total of 4 canines (2 on the upper jaw and 2 on the lower jaw).

**3. Premolars:**
- Premolars are larger and broader than canines.
- They have two cusps and are used for crushing and grinding food.
- Humans have a total of 8 premolars (4 on the upper jaw and 4 on the lower jaw).

**4. Molars:**
- Molars are the largest and strongest teeth located at the back of the mouth.
- They have multiple cusps and are used for grinding and chewing food.
- Humans have a total of 12 molars (6 on the upper jaw and 6 on the lower jaw).

**5. Wisdom Teeth:**
- Wisdom teeth, also known as third molars, are the last teeth to develop in the mouth.
- They usually appear between the ages of 17 and 25.
- Wisdom teeth can cause problems such as overcrowding or impaction and may need to be removed in some cases.

Based on the information provided above, it can be concluded that the correct answer to the question is **(c) 4 types**. There are four main types of teeth in humans: incisors, canines, premolars, and molars. Wisdom teeth are a subset of molars and are not considered as a separate type.

4 type of teeth in the mouth.