A Asks for Tenders for the Renovation of a Houseboat

Multiple Choice

A asks for tenders for the renovation of a houseboat. B makes the successful tender and begins to incur expenditure in anticipation of the renovation job. Unbeknownst to both A and B, the houseboat sank without a trace before they had contracted. Which of the following outcomes is likely?

A) The contract will be void for common mistake.
B) A will be treated as having promised that the houseboat existed, so B can sue for breach of contract.
C) The contract will be voidable for common mistake.
D) None of the options given are correct.