CTET Class I to V 28 Dec 2021 Paper

In an EVS class, teacher asked all students to respond on how clothes are washed? Students answered that they see their mother use a variety of methods to wash clothes such as add soap, beat the clothes on a stone, beat with paddle, scrub with brush or in washing machine. Which of the following statements explain best why the teacher conducted this discussion?
A. for highlighting social disparity among students
B. for encouraging students to reflect on home experiences
C. for providing a varied context of how clothes can be washed
D. for teaching them the process of cleaning the clothes