Analyze the relationship between 'ExxonMobil' and 'ExxonMobil Chemical' within the context of the input sentence.
Options: chairperson, operator, parent organization, subsidiary

With its strong background in manufacturing and R&D, R&P licensed the technology from ExxonMobil Chemical in 2014 when ExxonMobil Chemical exited from the TPO market, so as to continue serving the automotive OEMs directly with its STERLENE™ grades.
subsidiary