Step 1: Concept
During the New Kingdom period of ancient Egypt, there was a significant religious shift under one pharaoh who introduced monotheism by focusing worship on Aten, the sun disk.
Step 2: Meaning
Aten became the sole deity in this new religious system, replacing the traditional pantheon. This change had profound impacts on Egyptian society and culture.
Step 3: Analysis
Ramses II ruled during the 19th Dynasty but was known for his military conquests and building projects rather than religious reforms. Narmer is believed to be the first pharaoh of Egypt, dating from the Early Dynastic Period, long before the New Kingdom. The Hyksos were not Egyptian pharaohs; they were foreign rulers who briefly controlled parts of Egypt during the Second Intermediate Period. Akhenaten, also known as Amenhotep IV, was a pharaoh who initiated the worship of Aten and banned other gods in the 18th Dynasty.
Step 4: Conclusion
Akhenaten's reign marked this significant religious transformation by focusing solely on Aten.
Final Answer: (D)