What are the differences between between ordinary shares and preference shares?()

A、Theholdersof
ordinaryshareshavevotingpower;
B、Theholdersof
ordinarysharesfaceLowerrisks;
C、Theholdersof
preferencesharesreceivedividendsafterordinaryshareholders;
D、Theholdersof
preferenceshareshavearighttoreturnofthecapitalbeforethat
ofequityshares.