Which three commands can you use to set a router boot image? (Choose three.)

A.
Router(config)# boot system flash c4500-p-mz.121-20.bin

B.
Router(config)# boot system tftp c7300-js-mz.122-33.SB8a.bin

C.
Router(config)#boot system rom c7301-advipservicesk9-mz.124-24.T4.bin

D.
Router> boot flash:c180x-adventerprisek9-mz-124-6T.bin

E.
Router(config)#boot flash:c180x-adventerprisek9-mz-124-6T.bin

F.
Router(config)#boot bootldr bootflash:c4500-jk9s-mz.122-23f.bin