In the UK financial sector, which of the following assets is classified as a component of the broad money supply (M4M_4M4) but has lower liquidity than a standard sight deposit?
A three-year sterling term deposit held by a UK household at a building society
A 91-day Treasury bill issued by the UK Government
Sterling banknotes held inside a commercial bank's automated teller machines (ATMs)
Operational reserve balances held by commercial banks at the Bank of England
