1.) If $f$ is differentiable, then its derivative is unique.

                   A) True                     B) False


2.) The anti-derivative of a function is unique.

                   A) True                     B) False


3.) The anti-derivatives of $f'$ are the functions $f + C$, where $C$ is a constant.

                    A) True                     B) False


4.) The unique derivative of $f$ is the function $f'$.

                   A) True                     B) False