Respuesta :
The development of embryonic i.e. used for proof with respect to evolution should be related species that contain the same embroys.
What is an embryo?
An embryo refers to the early development stage with respect to the multicellular organism. The organism should be again produced se-xually. Moreover, the development of embryonic should be a portion of the life cycle just done after fertilization and continued via when the structure of the body is formed like tissues and organs.
Therefore, the correct option is A.
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