Without Authorization, Lars Contracts on Behalf of Mina to Have

Multiple Choice

Without authorization, Lars contracts on behalf of Mina to have Nemo paint the interior and exterior of Mina's house. If Mina decides to ratify the contract, she must affirm​

A) ​all of the contract.
B) ​any part of the contract, with Lars liable to Nemo for the difference.
C) ​any part of the contract before performance begins.
D) ​any part of the contract at any time.