They eat the same foods. They have similar DNA. They speak the same language. They have the same interests.
I gave my students this multiple choice question: Which best explains why children resemble their parents?

Only one answer is correct among these 4 choices:
- They eat the same foods.
- They have similar DNA.
- They speak the same language.
- They have the same interests.

Could you tell me which one is correct?

They have similar DNA.