Which Statement About Flipped Learning Accurately Describes Its Implementation

Which statement about flipped learning accurately describes its implementation?

A) It is most prevalent in schools with minimal technology budgets that serve low-income communities.
B) It is an educational delivery mode where at least part of the instruction is delivered online through digital means.
C) It may be assigned as homework,as a form of review,after a lesson has occurred.
D) It is a trick to help memorize something and is most often used in content area classrooms.