Final answer:
The phrase 'I scratched a big X through my earless macaroni-legged horse' best conveys the tone of frustration in "Drawing Horses" by Cerelle Woods.
Step-by-step explanation:
The phrase that best conveys the tone in paragraphs 1 to 9 of "Drawing Horses" by Cerelle Woods is (D) "I scratched a big X through my earless macaroni-legged horse" (paragraph 8). This choice suggests a sense of frustration or dissatisfaction with the drawing attempt, providing insight into the narrator's feelings and experience. It evokes a visual and emotive response, directly reflecting the artist's critical self-assessment and possible exasperation.