Which of the following references will change if copied to another cell?

The choice indicating C (A1) is correct because this is an example of a relative cell reference. Relative references change based on the position of the cell to which they are copied. When you copy A1 to a different cell, Excel automatically adjusts the reference based on the new location. For instance, if A1 is copied to B1, it will change to B1.

In contrast, absolute references (like $A$1) do not change at all when moved or copied; they remain fixed regardless of where they are placed. Mixed references (such as A$1 and $A1) partially retain their original behavior: the part with the dollar sign remains constant while the other part changes. For example, if you copy A$1 to B$1, it will still reference A1 in the new column but not change the row. Similarly, copying $A1 to $B1 maintains the row reference as 1 but changes the column reference.

Therefore, A1 is the only reference among the choices provided that adjusts fully based on its new position, making it the answer to the question.