Question: How is a memory variable created? How is its value changed? Group of answer choices A memory variable is a copy of an already existing

How is a memory variable created? How is its value changed?
Group of answer choices
A memory variable is a copy of an already existing variable at a new place. Its initial value is the same as the already existing variable. Changes to any of them does not affect the other one.
A memory variable is a new name for an already existing variable. Its initial value is the same as the already existing variable. If the value of any of these two changes the value of other one has also been changed.
A memory variable is a copy of an already existing variable at a new place. Its initial value is the same as the already existing variable. If the value of any of these two changes the value of other one has also been changed.
A memory variable is a new name for an already existing variable. Its initial value is the same as the already existing variable. Changes to any of them does not affect the other one.

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