It is A

None of them will be correct if you miss the articles! ''Choose the correct answer. He has a big red German car.''

It is A. If you have multiple adjectives modifying one noun, then you would arrange them in order by the following: Feelings, Size, Age, Shape, Color, Origin, Material, Purpose And, as mentioned above, add "a" "before big red German". He has a big red German car.

The answer should be "a big red German".