>...that indicates it came from a Student Version of Autocad and this alone my (might?) "flag" your instructor that something is "fishy".
Why is that? What is "fishy" about students using a student version of the software (particularly since students can get the software for free)?
What I would consider fishy is a student able to work at home and turning in the work and it doesn't have the watermark. Some students might have a parent with a legal commercial release at home, but most probably aren't that fortunate.
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