Egypt Was Able to Build a Modern State Based on Cotton

Egypt was able to build a modern state based on cotton exports until the market for Egyptian cotton collapsed after

A) the British switched their preference to Indian cotton.
B) King Jaja instituted peasant economies based on hand weaving that undercut Ali's labor forces.
C) the American cotton market resumed after the Civil War.
D) new work on irrigation canals caused a decrease in flooding of the Nile, and cotton crops failed for five years successively.
E) France occupied Egypt and prevented it from exporting cotton to Britain.