According to Piaget's Concept of Accommodation

According to Piaget's concept of accommodation,

A) a child applies an old schema to new objects or problems.
B) a child modifies an old schema to fit a new object or problem.
C) a child understands that objects continue to exist, even when hidden.
D) a child recognizes that the amount of liquid remains the same when poured from one container into another of a different shape.