Detailed Explanation:

Option A — Correct (true statement). UPI moves money already in bank accounts. Digital Rupee is like digital cash — issued directly by RBI, same as physical currency.

Option B — Correct (true statement). UPI: money debited/credited instantly through banks. Digital Rupee: wallet-to-wallet transfer is final immediately, like handing over cash — no separate settlement needed.

Option C — Correct (true statement). UPI transactions go through bank accounts, so they show up in bank statements. Digital Rupee transfers are wallet-to-wallet, so individual transactions don't show in bank statements (only loading/unloading the wallet does).

Option D — INCORRECT (this is the answer we need).

• UPI money = commercial bank's liability (since it's bank money)
• Digital Rupee = RBI's liability (since RBI issues it directly, like physical cash)

These are different, NOT the same — so saying "in both cases, liability is with banks" is wrong.