Answer:
D
Step-by-step explanation:
The excerpt begins by describing the predicament that manufacturers or body shops faced when trying to implement the two-tone paint style on early automobiles.
The article then goes into more detailing concerning the specific issues that needed to be overcame with the paint jobs. The reader learns about the problems with glue, tap and solvents.
Finally, at the very end, the the excerpt confirms what we already knew thanks to having read through the entire passage.