Select the sentence that is NOT parallel in structure.
a) Gavin was a terrible driver; he totaled a Ford Mustang, a Dodge Charger, and a Chevrolet Camaro.
b) Totaling a Ford Mustang, a Dodge Charger, and a Chevrolet Camaro, Gavin was clearly a terrible driver.
c) Gavin, a terrible driver, totaled a Ford Mustang, a Dodge Charger, and he just totaled a black Chevrolet Camaro just last week.