Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to keep confidential data secure on an usb by using hopedot vos security edition [title] Download hopedot vos security edition and install it on a fast speed usb drive. [step] If you use hopedot vos tailor-made usb, you can skip this step, as the software has already been in the usb drive. [title] Install your often-used applications (firefox, office 2007, skype etc.

Ending1: [step] ) on hopedot vos firefox. Remember to use the " firewall " setting. Ending2: [step] ) on hopedot vos security edition and boot onto your usb drive if you select that option. [title] Download hopedot vos security edition on a mac os x mobile device. Ending3: [step] ) into the hopedot vos virtual operating system. Then, do the job and save the confidential data only in hopedot vos environment. Ending4: [step] ) by simply searching and hitting " yes " in the search results. [title] Open hopedot vos security edition and install it.

Answer format: ending1/ending2/ending3/ending4