Keeping track of common files by using a lot of computers and mobiles all through the day may be hard. A good example is when you synchronized your mobile and computer devices. If you check an email using your computer, it will also appear in your smartphone. This will be a lot easier to track your email through both of your devices than having not to be synced at all.
Answer: I took a high school robotics class when I was in 5th grade and I don't even understand your code there aren't any instructions other than <em>"</em><em><u>Consider</u></em><u>"</u> the following code you may want to improve your question
The answer would be C. Kilobyte
D you can always find another way or other ways to relay your message
hope this helps ya :)