Lucy orally agrees to clean Pig Pen's house for $110. When she finishes, a dispute arises over whether or not Lucy was s

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Lucy orally agrees to clean Pig Pen's house for $110. When she
finishes, a dispute arises over whether or not Lucy was supposed to
have washed the windows and cleaned the oven. Pig Pen tells Lucy
that he will give her $90 instead of the full amount. Lucy
reluctantly agrees to accept the $90. Which of the following is
true?
A. The $110 is a liquidated debt.
B. The $110 is an unliquidated debt.
C. The parties have entered into a collateral contract.
D. All of the above.
Certain types of contract rights cannot be assigned to a third
party.
true
false