Which statement best explains the use of student portfolios? A. Portfolios allow students to organize a collection of work samples to show their learning. B. Portfolios are a beneficial way for teachers to prove to parents that their child has learned something. C. Portfolios provide an opportunity for students to compare their work with their peers. D. Portfolios are a way for the teacher to prove to the school administration that the students have learned from the teacher's instruction regardless of TAKS test scores