22. Which of the following best explains why black-and-white sketching lowers barriers to entry, as described in paragraph 2? (A) By emphasizing imaginative expression over structural technique, beginners are free to disregard accuracy. (B) The restriction of color options simplifies initial decision-making, easing anxiety about artistic choices. (C) Relying on abstract forms, the method appeals primarily to those already comfortable with ambiguity. (D) Because the medium mandates mastery of contrast, it raises the technical floor required for entry.