As per a report released by RBI in August 2017, approximately how much percent of the demonetised currency returned to the central Bank?

As per a report released by RBI in August 2017, approximately how much

1.	As per a report released by RBI in August 2017, approximately how much percent of the demonetised currency returned to the central Bank?
A.	99
B.	90
C.	85
D.	80
Answer» B. 90