Vijay claimed that the large dent in the fender of the company-owned vehicle he had borrowed was caused by the careless act of another motorist, who backed into the car when it was parked in a public garage. Yet Vijay's own car has several dents in its fenders, all of which he acknowledges as having , caused by his own careless driving. Therefore, Vijay's contention that the dent in the formerly untended company-owned vehicle was caused by the careless act of another person is not true?
The reasoning in this argument is vulnerable because it __________________.