Correct Option: B

The Reserve Bank of India on 25 June 2015 extended the deadline for exchanging pre-2005 currency notes of various denominations, including of Rs 500 and Rs 1,000, till December 31, 2015. The rationale behind the move to withdraw banknotes printed prior to 2005 is to remove them from the market because they have fewer security features compared with banknotes printed after 2005.