The best answer to this is B option. This is an oxymoron. An oxymoron is a contradictory phrase.
Answer:
Sherpa is one of the Tibetan ethnic groups native to the most mountainous regions of Nepal and the Himalayas. The term sherpa or sherwa derives from the Sherpa language words Shyar and Pa, which refer to their geographical origin of eastern Tibet.
I found this in wiki
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Twain accomplishes his purpose chiefly through telling a story within a story, also called a "frame story".
There are intermissions between acts.
