Read the following context and choose the best option to answer the question.
Context: Sponsor may require that the potential winner provide proof that he / she is the authorized account holder of the e - mail address and/or password associated with the winning entry . Entrants may cancel their team and receive a full refund of any fees up until the time their team is drafted . Once a team is drafted , no refunds will be given if the entrant cancels .
Question: What will the winner be asked for ?
Options: 
- None of the above choices .
 - Proof they are a legal entrant .
 - Proof of legal entrance .
 - Proof they are the account holder .


Proof they are the account holder .