<span>C. Most of what drives Prospero in the tempest is his ability to control events, particularly when it comes to exacting revenge on his usurper brother Antonio. Having Ariel put the characters to sleep means that he can freely achieve his goals.</span>
It would be a, because thats the only one that is true
Well, most slang words that have been used for a long period of time have been added to the dictionary, but then again, some other slang words have not. So, it really depends on the word.
But, for a straightforward answer i would say yes, just because some slang words are in the dictionary.
~Hope this helped