Answer:
Specific performance
Explanation:
Specific performance is the contract in which the party performs for the specific purpose rather than the general purpose. In this contract, one party is refusing to perform the contract due to some better options or by any other reasons
Examples - in case of real estate properties, antiques, etc.
In the given case, the contract was made for $80,000 but after two days the party deny to perform it as the party got an additional $20,000. So, this is the case of the specific performance.