Mildred Minor was a three$-$year$-$old child attending nursery school. Tom Tease, who attended the same nursery school, teased Mildred every day because she wore glasses. One day when Tom$$s teasing was particularly vicious, Mildred slugged Tom in the face, knocking out his two newly acquired front teeth.

If Tom$$s parents sue Mildred$$s parents for damage to Tom$$s teeth, the best defense would be:

A$.$

Tom was the initial aggressor.

B$.$

Mildred is too young to be responsible for her actions.

C$.$

A parent cannot be liable for damages due to the child$$s conduct.

D$.$

They were unaware of any potentially violent behavior by Mildred.