【单选题】It's 10 p. m. You may not know where your child is. But the chip does. The chip will also know if your child has fallen and needs immediate help. Once paramedics arrive, the chip will also be able to ...
A.
telling the location of your child
B.
telling doctors your child's medical history
C.
telling whether your child needs immediate help
D.
telling the rescue workers which medicine your child should take at once