In her persuasive speech aimed at convincing her audience that global warming is a serious problem, tere presents information on changing weather patterns, ice-caps depletions, and changes in arctic flow. tere's use of reasoning is an example of reasoning from a. credibility. b. cause and effect. c. sign. d. specific instances and generalizations.

C.

Explanation:

Reasoning can be defined as a capacity of making sense of something in a conscious manner.

Reasoning by sign is the type of reasoning in which the speaker presents certain observations which, the speaker thinks. are the reasons for the happening of other things or events. In reasoning by sign, physical observation can not be seen but inferred with the presence of the other thing or event.

In the given case, Tere observed that global warming is happening because of other events such as change in weather patterns, depletion of ice-caps, change in arctic flow. So, Tere's observation of global warming is inferred upon the happening of other events.

So, the correct answer is option C.

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