The company has been outperforming rivals such as Yum Brands Inc's (YUM.N) Pizza Hut and McDonald's Corp (MCD.N) in the United States due to the digital investments, which make it easier for customers to order pizzas using methods such as smart watches and digital wallets.
Take context from the input text and decide on the accurate relationship between 'Yum Brands' and 'Pizza Hut' from the options provided.
Options: chairperson, member of, owner of, platform