In AutoCAD, the default setting direction "straight down" would be measured as ____ degrees. A) 90 B) -90 C) 270 D) b. and c.?

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the answer 

(b) and c 

Answer is: option (D) b and c

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Option D is the correct answer.

The default setting for straight down would be measured as D) b and c

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Agree Answer Option B & C