01 Why is drawing only dark grain lines insufficient when shading a wooden surface?
Answer and explanation
Correct answer: A. The basic form and light-shadow structure must also be established
Explanation: The governing concept is that texture must support the form and lighting of an object. First establish the wooden surface as a three-dimensional volume with light, middle, and dark values; then add grain that follows its direction and curves. Therefore A is correct. Dark lines alone look like symbols, while B, C, and D incorrectly deny texture or rely only on an outline.