Take context from the input text and decide on the accurate relationship between 'GMC' and 'truck' from the options provided.
Options: location of formation, product/material produced, parent organization, platform

During the year, we launched on several models, including their new SUV lineup, the Cadillac Escalade, GMC Yukon and the Chevrolet Tahoe, adding to their full-size truck lineup that we launched in earlier.
product/material produced