Which of the Following Is the Most Likely Result If

Which of the following is the most likely result if Ronnie sues Sue for the $300 paid to Rick?

A) Ronnie will lose.
B) Ronnie will win because an agent has an implied right to obtain help.
C) Ronnie will win only if he can establish by a preponderance of the evidence that he acted reasonably.
D) Ronnie will win unless Sue can establish beyond a reasonable doubt that he acted unreasonably.
E) Ronnie will lose only if Sue can establish that Rick is incompetent to deal in real estate.