IX. Choose the correct sentence which has the same meaning as the given one.
at least 600,000 visitors/ come/ visit/ the park/ every year
A.There are at least 600,000 visitors come to visit the Park every year.
B.At least 600,000 visitors who come to visit the Park every year.
C.At least 600,000 visitors come to visit the Park every year.
D.There were at least 600,000 visitors come to visit the Park every year.