E.........................
Statement two and three is correct.
Statement 1 is incorrect. A relative reference changes when a formula is copied to another cell while Absolute references remain constant. However, it is safe to say that an absolute address can be preceded by a $ sign before both the row and the column values. It is designated by the addition of a dollar sign either before the column reference, the row reference, or both. Statement C is also correct. A mixed reference is a combination of relative and absolute reference and the formula (= A1 + $B$2) is an example of a mixed cell reference.
Answer: NVRAM(Non-volatile random-access memory)
Explanation:Non-volatile random-access memory(NVRAM) is the memory that has a non-volatile nature.It is used for retaining of the data even when the system gets switched off .
This memory uses the power source from the CMOS battery for executing the functions. It is designed by using the pin configurations containing 24 pin in DIP(Dual inline package). So the situation mentioned in the question of storing the changes will appear in the NVRAM.