In Eurocurrency Markets，three broad classes of financial items are in—volved A．bank deposits and credits，for example dollar deposits held at Europe—an banks(i．e．Eurodollar deposits) B．bank loans，for example Euro loans held at American banks C．primary securities in the form. of Eurobonds and Euronotes D．derivative securities such as foreign currency options(e．g．on the ecu)or futures on eurodollar instruments