What is the relationship between 'Stratasys' and '3D printing' in the context of the input sentence.
Options: distributed by, creator, industry, owned by

That's because when fellow 3D printing bigwig Stratasys reported its quarterly results last week, it withdrew its full-year 2015 guidance, citing lack of visibility into customer demand, and issued a third-quarter outlook that fell significantly short of what analysts were forecasting.
industry