During Much of the  Egyptian Old Kingdom , Egypt Was

During much of the  Egyptian Old Kingdom , Egypt was noted for which of the following?

A) Egypt had one dynastic line rule as pharaoh.
B) Egypt experienced its most significant cultural and architectural achievements.
C) Egypt began to practice agriculture for the first time.
D) Egypt began establishing its first hamlets and villages.
E) Egypt experienced invasions and warfare with its neighbors which caused societal stagnation.