A party to a contract may be able to avoid the contract if:

Select one:

a$.$ there is a mutual mistake, and the party undertook to bear the risk by conscious allocation.

b$.$ there is a unilateral mistake, and the party undertook to bear the risk by conscious ignorance.

c$.$ there was a mistake and the mistaken party was at fault in not discovering the problem before making the contract.

d$.$ None of these.