Question ID:PT27 S2 Q20 Passage:Six cars are to be arranged in a straight line, and will be numbered 1 through 6, in order, from the front of the line to the back of the line.  Each car is exactly one color:  two are green, two are orange, and two are purple.  The arrangement of cars is restricted as follows:No car can be the same color as any car next to it in line.Either car 5 or car 6 must be purple.Car 1 cannot be orange.Car 4 cannot be green. Stem:The cars in which one of the following pairs CANNOT be the same color as each other? Correct Answer Choice:AChoice A:cars 1 and 4 Choice B:cars 1 and 5 Choice C:cars 3 and 5 Choice D:cars 3 and 6 Choice E:cars 4 and 6