whAt DoEs thE Author mAinly DisCuss in this pAssAgE
[A] how to AvoiD CAr CrAsh. [C] how to EDuCAtE ChilDrEn propErly.
[B] how to DEsign sAFEr BABy EquipmEnt. [D] how to propErly sECurE ChilDrEn in thE EAr.
A．whAt DoEs thE Author mAinly DisCuss in this pAssAgE
B．how to AvoiD CAr CrAsh.
C．how to DEsign sAFEr BABy EquipmEnt.
D．how to EDuCAtE ChilDrEn propErly.
E．how to propErly sECurE ChilDrEn in thE EAr.