The word "when" is NOT a preposition. In fact, it is an adverb or a conjuntion which is used to introduce clauses.
The answer to your question is "long term."
Hope this helped.
The answer is B or C. <span>refutation is proving the evidence presented (usually by other person) to be incorrect. which results in on lookers to think the other person is "foolish" and that your evidence and facts are better
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