请选择ABC9_:p7m:q5V+F3Z7J8K We like this zebra, because this zebra is _________ than that one.:o2D'R8i.O4T
A. big:o2D'R8i.O4T
B. bigger:o2D'R8i.O4T
C. biger:o2D'R8i.O4T