In the Interbank market, ___________ make money on currency exchanges by the difference between the ________ price, or the price they offer to pay,

In the Interbank market, ___________ make money on currency exchanges by the difference between the ________ price, or the price they offer to pay, and the ____________ price, or the price at which they offer to sell the currency.

a.banks; ask; bid

b.brokers; ask; bid

c.brokers; bid; ask

d.banks; bid; ask