The correct answer is option C: Pharaoh Khafre.

Explanation:
The Great Sphinx of Giza is a massive limestone statue that is located on the Giza Plateau in Egypt, just outside of Cairo. It is one of the most famous and recognizable monuments in the world. The Sphinx is believed to have been built during the reign of Pharaoh Khafre, who was the fourth pharaoh of the Fourth Dynasty of the Old Kingdom of Egypt.

The Sphinx is a composite creature with the body of a lion and the head of a human. It stands at a height of about 66 feet (20 meters) and is approximately 240 feet (73 meters) long. The face of the Sphinx is thought to represent Pharaoh Khafre, as it bears a strong resemblance to his other portraits and statues.

There are several reasons why the Sphinx is believed to represent Pharaoh Khafre:

1. Location: The Sphinx is located in close proximity to the pyramid complex of Pharaoh Khafre. The Sphinx sits directly in front of the causeway leading to Khafre's pyramid, suggesting a connection between the two.

2. Similarity to Khafre's Portraits: The face of the Sphinx bears a striking resemblance to the face of Khafre as depicted in other statues and portraits. The facial features, including the narrow eyes, pronounced cheekbones, and gently curving lips, closely resemble those seen in Khafre's other images.

3. Inscriptions: There are inscriptions found near the Sphinx that mention the name of Pharaoh Khafre. These inscriptions provide further evidence of the connection between the Sphinx and Khafre.

4. Purpose: The Sphinx is often associated with the concept of kingship in ancient Egypt. It is believed to have served as a guardian and protector of the royal necropolis and the pharaoh's soul in the afterlife. As Pharaoh Khafre was the owner of the nearby pyramid complex, it is likely that the Sphinx was built to represent him and his role as a powerful ruler.

In conclusion, the Great Sphinx of Giza is believed to represent Pharaoh Khafre based on its location, resemblance to his other portraits, inscriptions, and its association with kingship. It stands as a magnificent testament to the power and grandeur of ancient Egyptian civilization.