In 1-2 sentences, compare the methods used and the reasons behind how Egyptians and Mesopotamians changed their environments to suit their needs.

A) Egyptians focused on river irrigation for agriculture, while Mesopotamians utilized canals for water distribution.
B) Egyptians and Mesopotamians both employed similar agricultural techniques to adapt to their respective environments.
C) Mesopotamians relied on pyramids for resource storage, while Egyptians used terrace farming for cultivation.
D) Both Egyptians and Mesopotamians altered landscapes through irrigation to support agricultural activities.