What methods did France use to take over Egypt?

The French forces took a person named Alexandria and  defeated the Mamluk army at Shubra Khit and Imbabah, and entered Cairo on July 25. On August 1, 1798, the British ran under Lord Nelson annihilated the French ships as they lay at anchor at Abu Qir, thus isolating Napoleon's forces in Egypt.

can someone me with this question:  

1) the end of the conflict between the north and the south didn’t just mark the end of a war; it marked the end of an entire way of life.” which statement best describes what this statement means?  

a) the southerners were no longer free and were controlled by the northern states.

b) the industrial economy in the north was not sustainable.

c) slavery became illegal, which changed completely the south’s labor force and the agricultural economy was destroyed.

d) the states decided to relinquish their independence and return to britain’s rule.