Campbell Soup Co. asked a U.S. investment bank to look at breaking up United Biscuits, Britain's biggest snack-maker, with revenues of £1.3bn last year, and maker of McVitie's digestives, as Campbell prepares to launch a bid for United's biscuit-making division, reports the Guardian. Brands include Penguin chocolate bars, Jaffa Cakes and the McVitie's Digestives, Rich Tea and HobNobs biscuits.