display all the features of an adult represent the earliest stage of development have the same number of cells as a fertilized egg have half the number of chromosomes as an adult
I gave my students this multiple choice question: Which statement describes animal embryos?

Only one answer is correct among these 4 choices:
- display all the features of an adult
- represent the earliest stage of development
- have the same number of cells as a fertilized egg
- have half the number of chromosomes as an adult

Could you tell me which one is correct?

represent the earliest stage of development