You are Dr$.$ Science, the question$-$and$-$answer person for a popular science YouTube channel. Watchers are asked to pose questions in the comments to Dr$.$ Science that you respond to using scientific fact to answer the question. Below are three comments people have left on your channel. For each comment write back using your online persona of Dr$.$ Science to answer their question. Your replies must be typed in one Word, double$-$spaced with $1"$ margins on all sides, and in $12-$point Times New Roman font. You reply should be no longer than $500$ words. Once completed, upload your document to the appropriate "Assignment" folder on Blazeview by the due date as indicated on Blazeview. You can earn up to $15$ points for this assignment, maximum of $5$ points per response. Points will be awarded for accuracy of the response and style$/$format of your response.

Dear Dr$.$ Science,

I've been reading a lot recently on the dispute between Nikola Tesla and Thomas Edison about $AC$ and DC currents. I know the difference between $AC$ and DC current, but I don't understand why it was such a big deal. Can you explain to me what they were fighting about?

Thanks,

urious about $A\frac{C}{D}C$