The correct answer is option 'A' (Bunodont).

Bunodont teeth are the type of teeth present in human beings according to their food habits. Let's delve into the details to understand this further.

Types of Teeth in Human Beings:

1. Incisors: These are the sharp, chisel-shaped teeth located at the front of the mouth. They are used for biting and cutting food.

2. Canines: Canines are the pointed teeth located on either side of the incisors. They have a single pointed cusp and are used for tearing food.

3. Premolars: Premolars are the next set of teeth located behind the canines. They have two cusps and are used for crushing and grinding food.

4. Molars: Molars are the rearmost teeth in the mouth. They have multiple cusps and are used for crushing and grinding food.

Bunodont Teeth:

Bunodont teeth have rounded cusps and are characterized by their low and rounded crowns. They are found in omnivorous mammals, including humans. Bunodont teeth are well-suited for a mixed diet that includes both plant material and animal flesh.

Explanation:

Humans have a diverse diet that includes both plant-based foods and animal proteins. Therefore, the bunodont teeth are best suited for this kind of diet. The rounded cusps of bunodont teeth allow for efficient chewing and grinding of both plant matter, such as fruits and vegetables, and animal protein, such as meat.

The low and rounded crowns of bunodont teeth provide a larger surface area for grinding and crushing food, aiding in the digestion process. This type of dental adaptation allows humans to effectively process a wide range of food types, aiding in the breakdown of tough plant fibers and facilitating the digestion of various sources of nutrients.

In conclusion, humans have bunodont teeth as they are omnivorous and require teeth that are adapted to chew and process both plant and animal-based foods efficiently.