Countless divorced politicians would have been elected out of office years ago had they even thought of a divorce, __________ gotten one.

A．To take delivery of a given commodity.
B．To make the market against price fluctuations stable.
C．To ensure delivery of a given commodity at market prices.
D．To allow for some price certainty before a commodity is delivered.

A．dropping prices of cattle
B．the uncertainty of the economy
C．insiders' manipulating the prices
D．price fluctuations in the price of cattle