Question One BurgerKing, a large hamburger chain, in an attempt to increase its market share, took a conscious decision to aim its advertising campaign at existing customers of other hamburger restaurants and, in particular, at the McDonald's customer. The advertisement prepared by Burgerking was a poster for displayr in trains, buses, trams and on the back of taxis. A large version was used on outdoor hoardings. It comprised a coloured photograph of a hamburger with, above it, the prominent headline: 'IT'S NOT JUST BIG, MAC' In the bottom right hand corner was displayed the logo of the Burgerking chain, and aiong the bottom of the advertisement were the words: 'YOU KNOW WHEN YOU'VE GOT A WHOPPER' Between this slogan and the photograph of the burger was some text which included the following: Like some burgers, a Whopper is big. Too big to hold in one hand. Unlike some burgers, it's 100% pure beef, ame grilled never fried, with a unique choice of toppings. McDonald's have promoted ail their hamburgers extensiver as being 100% pure beef, and Burgerking does not contest this. McDonald's claim that the advertisement of Burgerking involves passing off and breaches s 13 of the Australian Consumer Law. Advise