Answer:

Which of the following attitudes is necessary to validate your arguments?

    B. evidence

Explanation:

Because if you had a evidence, what you see or hear are telling the truth. If they kept arguments with no evidence theirs no valid if you kept arguing without a evidence.

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Answer:

B. Evidence

Why?

Because if you had a evidence, what you see or hear are telling the truth. If they kept arguments with no evidence theres no valid if you kept arguing without a evidence.

Explanation:

hope it helps ^_^