What is the timeline of auto reversal of transaction for a bank, when the amount debited from one card but did not reach another card(card to card transfer) as per new guidelines of Reserve Bank of India(RBI) ?

• A. 1 day after failed transaction
• B.  2 days after failed transaction
• C. 7 days after failed transaction
• D. 15 days after failed transaction
• E.  None of these