Mary Owes $3,800 on Her Credit Card

Mary owes $3,800 on her credit card.She sends the credit card company a check for $800 with the notation "payment in full" on the check.If the credit card issuer cashes the check,

A) Mary's balance will automatically be paid in full if the $3,800 amount was a liquidated debt.
B) Mary's balance will automatically be paid in full regardless of whether the amount of $3,800 was liquidated or unliquidated.
C) the check may be subject to a UCC exception to the general rules for accord and satisfaction cases involving checks.
D) Mary's balance will automatically be paid in full if the $3,800 amount was an unliquidated debt.