Choose the correct answer?$$

when a market maker quotes a bid and an offer, the bid is the price at which the market maker is prepared to buy and the offer is the price at which the market maker is prepared to sell.$$

OTC market is a telephone$-$ and computer$-$linked network of financial institutions, fund managers, and corporate treasurers.$$

OTC market is$$where two participants can enter into any mutually acceptable contract.$$

an exchange$-$traded market is a market organized by an exchange where traders either meet physically or communicate electronically.$$

all of the above$$