What is one benefit of applying new colour over a dry acrylic layer?

Correct answer: The lower colour can be covered easily

Acrylic paint becomes a stable film when dry, so an opaque new colour can be placed over it to cover, correct, or modify the underlying area. Thus, option A is correct. The benefit is not that paper tears or the brush cleans itself; those statements are unrelated. Paint can adhere to a suitable dry surface, so option D is also false. The coverage depends on the new paint’s opacity and the number of layers applied.