Given below are six sentences, out of which sentences A and F are in the correct position. Sentences B, C, D and E are in a jumbled order. Select the option that gives the correct order. 
A. Amina joined a two-year course at a local coaching institute. 
B. However, she decided to opt out of the course at the end of one year. 
C. When she asked for the refund of the fee for one year, she was denied. 
D. This was because of the poor quality of teaching at the institute.  E. At the time of joining, she paid a fees of Rs. 60000 as lump sum for the entire course.  F. Amina filed a case in the district consumer court.