Answer:
not rescind the contract
Step-by-step explanation:
According to the given situation, Veronica offers to Rowena to purchase his luxurious sedan by saying that it has been into an accident. After that Rowena hires Laszlo who is a mechanic to repair the sedan. Here Laszlo told Rowena that this sedan is mostly into an accident, after knowing these details Rowena is decided to purchase a car. After some time, Rowena faces a mechanical problem, here she can not break the contract as she already knew that car is have been into an accident mostly.
Therefore, the right answer is she cannot rescind the contract.