Answer:
C. USB
Explanation:
A USB Disk allows for a Backup of the PowerPoint file in case Jack needs it in the future.
Given the options, I would choose Option C. =B1+B2+B3+B4+B5.
The biggest thing she need to consider are her variables. and the output she will get.
I will try to give you the best answer I can possibly come up with.
The easy way to get it is to store it into an array of strings and print the array of string backwards. You can do that by starting at the last part of the array down to the first letter.