36.Mrs Torres bought 15 3/4m of cloth. She used 8 1/2m for curtains and 6 1/5m for bed cover. How many meters of cloth were not used?
A.1 1/20m of cloth B.1 2/4m of cloth
C.1 2/6m of cloth D.1 1/10m of cloth

i need answerrr pls :(​