Dry-brush texture on distant hills is too distinct and makes them appear near. What correction is needed?

Correct answer: Reduce texture and use softer washes with blurred edges

The governing concept is atmospheric perspective. Distant forms usually have lower contrast, less visible texture, softer edges and weaker detail because intervening air reduces clarity. Thus B is correct: reduce the dry-brush marks and use a lighter, softer wash with blurred boundaries. Darkening, black outlines or large patches would increase contrast and make the hills appear even closer.