Take context from the input text and decide on the accurate relationship between 'Stratasys' and '3D printing' from the options provided.
Options: location of formation, headquarters location, product/material produced, brand

“We needed to look beyond our factory walls to get a more complete sense of where 3D printing is headed, so we turned to those who live and breathe the technology just like we do – professional users,” said Joe Allison, CEO of Stratasys Direct Manufacturing.
product/material produced