Which of the following represents order of Horse ?

Options

A. Equidae
B. Perissodactyla
C. Caballus
D. Ferus

Explanation

To determine the order of the horse, we need to follow the biological classification hierarchy step by step. Here’s the solution:

### Step-by-Step Solution:

1. **Identify the Kingdom**: The horse belongs to the Animal Kingdom. This is the broadest category that includes all animals.

2. **Identify the Phylum**: Within the Animal Kingdom, horses are classified under the Phylum Chordata. This phylum includes all animals that have a notochord at some stage of their development, which includes vertebrates.

3. **Identify the Class**: Horses are classified in the Class Mammalia. This class includes all mammals, characterized by the presence of mammary glands, hair, and three middle ear bones.

4. **Identify the Order**: Within the class Mammalia, horses are further classified into the Order Perissodactyla. This order includes odd-toed ungulates, which are mammals that have an odd number of toes on their feet. Horses, along with rhinoceroses and tapirs, fall into this category.

### Conclusion:
Thus, the order of the horse is **Perissodactyla**.