Hedges are used in scientific writing due to the following reasons except （）.

Hedges are used in scientific writing due to the following reasons except （）.

A.authors tone down their statements in order to reduce the risk of opposition

B.authors try to appear humble rather than arrogant or all-knowing

C.hedges are considered as a strategy of being more precise in reporting results

D.hedges are used as a strategy to present unproven claims with certainty

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