Paul Ordered a Motorbike from Moto-Haus

Paul ordered a motorbike from Moto-Haus. He had reviewed all the specifications and told the salesperson of his final choice. When the bike arrived, Paul found that it did not live up to the fuel efficiency that he expected or that was claimed in the brochure. He took the bike back to Moto-Haus, and demanded the return of his money, which was refused. Paul would be best advised to:

A) treat the contract as at an end, sue for breach of warranty.
B) treat the contract as at an end, sue for breach of condition.
C) treat the contract as at an end, sue for fundamental breach.
D) treat the contract as on going, sue for breach of warranty.
E) treat the contract as on going, sue for breach of condition.