Why were some American colonists calling for independence?

They felt an emotional attachment to Britain; they knew that the imperial connection had brought them protection; they feared that foreign aid might lead to foreign domination; and many of them were alarmed lest independence bring with it economic and social leveling.

Explanation:

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.    

vote for officials is the right answer