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.
Refer to the input text as context and select the correct relationship between 'Microsoft Mobile' and 'smartphone' from the available options.
Options: creator, product/material produced, parent organization, location of formation