OK...... Can't... Can't, is a negative word. Can't, could break someones spirit to do something. Let's say someone wanted to achieve something, for instance, You want to walk to New York from..um...New Mexico. There are some people that would say you CAN'T do it. That it is just impossible to do such a thing. Now, that word can't could change that whole sentence. That word alone could break, crush, or destroy someones hope, spirit, or enthusiasm to do something. Can't, is a negative word. Can't, destroys hope, your spirit and your enthusiasm to do something.. H0P3 It H3LPS :)
I would go with D, as Non-fiction isn't locked to politics or science; It's moreover use to categorize literature (books, etc...) that are based solely on fact.
