Utilize the input text as a context reference, choose the right relationship between changed and digital distribution from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

We changed our delivery systems to accommodate customers’ new delivery requirements such as curbside pickups, contactors’ deliveries and digital distribution of prints throughout North America.

Answer: distribution_format