The traffic rule says young children under the age of five and _______ less than 25 kilograms must be in a child safety seat.

The traffic rule says young children under the age of five and _______ less than 25 kilograms must be in a child safety seat.

1. A.
   being weighed
2. B.
   to weigh
3. C.
   weighed
4. D.
   weighing 

The traffic rule says young children under the age of five and _______ less than 25 kilograms must be in a child safety seat.

The traffic rule says young children under the age of five and _______ less than 25 kilograms must be in a child safety seat.