In Jessica's case, but not Allen's, the money supply decreases.
Jessica completed the task of withdrawing funds from the bank, through borrowing. Allen made a monetary deposit adding to the bank's availability of funds. These funds are often borrowed by other patrons in who borrow money from the bank-as Jessica did.
Answer: I think the answer is A.
Explanation: I think so because the sentence talks about the brain developing, which is changing.
The proper format is

No one really "said" it; it is the equation that represents Einstein's Theory of Relativity.
The answer is shaping. Shaping is normally used to train
animals, such as dogs, to perform difficult tasks; it is also a useful learning
tool for modifying behavior of human. It is a method of training by which
successive estimates toward a target behavior are protected—to test his
theories of behavioral psychology.
A monotheistic religion worships only one god, a polytheistic religion worships many gods. Examples:
Monotheistic: Islam, Judaism
Polytheism: Hinduism, Buddhism