Which of the Following Would Be the Result in a Majority

Which of the following would be the result in a majority of states in regard to Isabella's obligation to the Italian university?

A) That in order to satisfy equitable principles,the parties would split the remaining debt with Isabella owing $1,000.
B) That because the university offered,through issuance of the check,full repayment,no accord and satisfaction existed;Isabella owes the full $2,000.
C) That under the UCC,Isabella would be required to pay the full amount,but the university would be estopped from charging any interest.
D) That because the debt was liquidated,no accord and satisfaction occurred,and Isabella owes the full $2,000.
E) That because the debt was unliquidated and the university cashed the check,an accord and satisfaction occurred,and Isabela owes nothing.