Superstore Ltd. has purchased land from Investment Ltd. to build a new supermarket. After the contract has been signed, the city of Vancouver unexpectedly changes the permitted use of the property from commercial to residential only. This means that the property is no longer useful for Superstore Ltd. Which of the following best describes the legal position of the parties involved? O The contract is frustrated O If Superstore Ltd. refuses to complete the transaction, Investment Ltd. can ask for specific performance O Superstore Ltd. will be liable for breach of contract if it refuses to complete the transaction O There is one-sided mistake by Superstore, and the contract is valid 1 point