Why was eisenhower given the nickname "the new emancipator"?

Southern states voted Republican

For over a century the South was solidly Democrat. Eisenhower was the first presidential candidate to get overwhelming southern support moving many states from Democratic holds to Republican states. The South would continue to move to the Republican Party typically over the issue of civil rights and anti-liberal reform. 

C, because he has a direct link and profit from the trade. the fastest way by boat to transport those goods is via the panama canal.