Marty runs an illegal business and pays Barbara, a cop, not to interfere. The payments are discovered. Marty and Barbara are tried, convicted and sent to prison. Marty can successfully sue Barbara for the return of

Group of answer choices

A. Only the money paid to Barbara that has been spent.

B. None of the above.

C. Only the money paid to Barbara that has not been spent.

D. All of the money paid to Barbara.