1) In 2001, there were about 62.5 thousand golden retrievers registered in the United States. In 2002, the number was 56.1 thousand. Which linear equation best represents this information?
(A) y = 6.4x + 2001
(B) y = -6.4x + 12868.9
(C) y = 6.4x - 12743.9
(D) y = -6.4x + 2002