Utilize the input text as a context reference, choose the right relationship between Whopper and Burger King 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.

In a full-page newspaper ad Wednesday, Burger King proposed the two companies make a mashup of their staple burgers - the Whopper and the Big Mac - to create an all new creation called the “McWhopper.”

Answer: manufacturer