Which of the following accurately describes an informal supplier evaluation: Question 4 options: A. Weekly or monthly statuses on suppliers based on feedback from internal customers. B. A roundtable discussion at the executive level to discuss suppliers past performance, future performance, long-term goals and expected trends. C. A categorization or check off that describes suppliers' performances across different categories. D. Categories are chosen and weights are assigned to each category and overall scores are calculated for each supplier. A and B