An opposing claim in an informational text is:
An informational text is one that is used to give details and information about events which happen in the world at large.
An opposing claim is the argument which an author presents to his readers in order to counter a previously made claim.
As a result of this, we can see that an opposing claim in an informational text is one that is used to contradict an argument made by the author.
Therefore, the correct answer is option A
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