15人去划船，每条船能坐4人，至少应租请选择ABC4@*i.r:L8H6l9@1Z(w1_;_-Q3d(z2c
A．3条船8H6l9@1Z(w1_;_-Q3d(z2c
B．4条船8H6l9@1Z(w1_;_-Q3d(z2c
C．5条船8H6l9@1Z(w1_;_-Q3d(z2c