NEW YORK (AP) — If an iced coffee from Dunkin' Donuts is part of your afternoon routine, expect a nudge to buy a cookie or doughnut you didn't plan on. The head of the U.S. division for McDonald's Corp., Jeff Stratton, has said in a past interview with the AP that keeping the chain's apple pie dispensers visible to customers right behind the cashier helps drive sales. Attracting more customers in the afternoons — and getting them to buy more when they visit — is critical for Dunkin' Donuts, with convenience stores, fast-food chains and packaged food companies all pushing into the breakfast business. Dunkin' Brands Group Inc., based in Canton, Massachusetts, cited that intensifying competition Thursday as one of the reasons for its underwhelming sales increase of 1.8 percent at established U.S.