Mistake can occur where there was a mistake as to identity of one of the parties to the contract and where identity is essential or fundamental to that contract. Which one of the following correctly describes this type of mistake?

Question $10$Answer

a$.$

Alice needs a licensed plumber to fix her leaky taps. She calls the plumbing company and asks for Bert, who fixed her water tank in the past. Next day Fred showed up because Bert was sick. Fred is a licensed plumber.

b$.$

Chris sold his house to Gerhardt, a wealthy aristocrat. Chris later changed his mind when he found out that Gerhardt was in fact a retired carpenter from Moose Jaw.

c$.$

Pete is a music agent. He booked the winner of a music competition for an upcoming concert. When the winner came to rehearsals, it turned out that he "won" a preliminary round but not the final round.

d$.$

Michael bought organic vegetables from Sierra who secretly uses pesticides when growing her crops.

e$.$

None of the above