In order to be bias free u need to make a principal that watever the situation comes but youll never ever follow the wrong thing.you should always stand for the truth does not matters whoever is ur opponent sometimes it may be ur own friend but u should be completely determined to ur principle and never ever speak for insincere people ... if u do so then u will be able to work bias free and consequently all ur problems will dissolve..
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The action of a play is generally confined to a "world" of its own—that is, to a fictional universe that contains all the characters and events of the play—and none of the characters or actions moves outside the orbit of that world.
The answer is C.) because of the present participle "has". If the present participle "has" wasn't in the sentence, then the answer would be B.). Anyway, the answer is C.) because of "has". (has spoken). I hope that helps :)
