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.
Take context from the input text and decide on the accurate relationship between 'Stratasys' and '3D printing' from the options provided.
Options: product/material produced, publisher, position held, original broadcaster