The answer is b. They both lay amniotic eggs.
Both birds and reptiles belong to a clade of vertebrates, Amniotes, which lay amniotic eggs. Mammals also belong to Amniotes. Amniotic eggs can remain within the mother after fertilization or can be laid on land. On the other side, <u>an</u>amniotic eggs are usually laid in the water.
They become visible in the phase called "Prophase". I hope this helps!
For your answer, I am sure your blank is "analyze". This is because you must analyze or "look over" your data that has been collected.