What is the relationship between 'Microsoft Mobile' and 'Microsoft' in the context of the input sentence.
Options: brand, headquarters location, parent organization, distributed by

Ravi Kunwar, Director – North, Microsoft Mobile Devices said, “We at Microsoft are committed to focus on enhancing user experience with our devices and with this new ‘Buyback’ offer we want to enable customers to upgrade to a smartphone that will help them be more productive and stay connected.
parent organization