Do you think where the toy car can move fast
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \large{{\tt{A.) \: \sf{ \tt{W}\sf{ax } \: paper}}}}[/tex]
The car moved faster on the wax paper because it had less friction. The rougher the surface, the more friction there is.