If someone is retired and only wants to work at weekends with easy responsibilities like answering the telephone, where he or she should call to get more information for the position（）

A. AB
B. B
C. O
D. None of the above

A. The Negroes came to North America in order to work for the earliest immigrants.
B. The Negroes also belonged to the earliest immigrants to the North America.
C. The Negroes were brought to America by chance.
D. The Negroes didn’t win freedom until now.