That structure is called an A. Blastocyst
I want to say the 1st one
Puedes hacer la pregunta de nuevo por favor
Answer:
It's C and D (The last two)
Explanation:
Because "has" and "he" are directed to a person, in this case "has" goes to someone you are talking to and "he" to yourself.
And yet "hay" or "había" does not go to someone in particular.
