请选择ABC4W6R4]9V+b3K5M*l.c,W/s,~:P8B-Good afternoon，class. - , teacher.(h0i8l7_7E+n7O9H'm-\0V,X(e-o
A. Good morning(h0i8l7_7E+n7O9H'm-\0V,X(e-o
B. Good afternoon(h0i8l7_7E+n7O9H'm-\0V,X(e-o
C. Goodbye(h0i8l7_7E+n7O9H'm-\0V,X(e-o