请选择CBA2L8B-N5B(P8I There are______ public signs in the park, but I don’t know_____ about them.4D+_9K*s2K,j6d(?
A. a lot of; a lot of4D+_9K*s2K,j6d(?
B. a lot; a lot4D+_9K*s2K,j6d(?
C. a lot of; a lot4D+_9K*s2K,j6d(?