A child in your classroom asks you why another child looks different than sge does herself. Which of the following is the appropriate way to respond $?$

Tell the child $,$we don't say things like that $.$

Explain to the child why commenting on physical differences is rude

Tell the child that it is not polite to notice differences, since we are all the same inside

Explain to the child in an age appropriate way why her classmate looks different while also explaining that people who look different also have much in common