Which statement about teaching methodologies is commonly accepted now? (A)The development of compatible methods flexible enough to meet various needs of modern society and sufficiently scientific to teaching and learning is what we need. (B)The development of a type of teaching narrowly based on a particular need for students is important. (C)Individual language teachers should not exercise their personal gifts in their teaching but apply scientifically established guidelines. (D)The great diversity of the methodologies confuses teachers, so a search for a better one is an urgent issue.