The 3D printing pioneers Stratasys Ltd. ( SSYS ) and 3D Systems Corp. ( DDD ) touched highs of $120.36 and $80.13 in 2014 and 2013 respectively.
Utilize the input text as a context reference, choose the right relationship between 'Stratasys' and '3D printing' from the options.
Options: original broadcaster, publisher, position held, product/material produced