Flexcar Is a Car Rental Service Found in Some U

Flexcar is a car rental service found in some U.S.metropolitan areas.It targets people who take mass transit or carpool to work but occasionally need to run errands,visit the doctor,or check on a sick child.Flexcar is the only company currently providing cars that can be rented by the hour.Which type of advantage has Flexcar created?

A) sustainable competitive
B) experience curve
C) service differentiation competitive
D) niche competitive