Answer:
D. The Byzantine Empire recovered from the 1204 attack.
Explanation:
During the attack in 1204, part of Constantinople's capital city was destroyed by the Ottoman. But in the end, the Byzantine empire still managed to drive the ottoman out of important territories. That being said, Byzantine Empire still lost quite a few of their outer territories to the Ottoman.
The attack in 1453 on the other hand occurred after the Byzantine empire experienced the black plague that killed large portion of their population. This made their military became really week. In the end, the attack in 1453 marked the fall of Byzantine empire.
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Answer:
The correct response is Option A: assimilating the comb into his existing schemes.
Explanation:
Jean Piaget is a well-known psychologist who specialized in the development of children. He developed several influential theories about the cognitive development of children. Infants at the age of 7 months like Darnell are just beginning to experience their world in a sensorimotor scheme where they learn by touching objects and often putting what they find into their mouths. Before Piaget’s theories became widely known, the common assumption was that children think like adults but are only less competent at it. Piaget's work was ground breaking because he showed that young children think in different ways than adults.
The proper format is

No one really "said" it; it is the equation that represents Einstein's Theory of Relativity.