A taxi driver purchased four tires of the Toughgrip brand for his cab. Within six months of his purchasing these tires, three of them suffered irreparable blowouts. Despite the poor track record of these tires, the driver replaced all three of the damaged tires with new Toughgrip tires.
Which of the following, if true, does NOT support the driver’s decision to replace the damaged tires with new Toughgrip tires ？（）
A. Toughgrip tires are the only tires the driver can afford.
B. The driver feels obligated to buy tires from his brother, who sells only Toughgrip tires.
C. One of the tires was slashed by a rival driver, while the other two blew out in traffic because of material defects.
D. The Toughgrip Company offered to replace all of the tires free of charge because the tires were covered under a 60,000-mile warranty.
E. The taxi company for which the driver works has endorsed Toughgrip as the official tire of their company’s cars.