If |cd| > cd, which of the following must be true?

I. c < 0
II. d < 0
III. cd < 0

Correct answer marked below

I only

II only

III only

Correct

I and II only

I and III only

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What this question tests

Your ability to solve and combine linear inequalities and reason about ranges of values.

Failing to flip the inequality sign when multiplying or dividing by a negative, or missing an inclusive/exclusive endpoint.

If |cd| > cd, which of the following must be true?I. c < 0II. d < 0III. cd < 0