A pedestrian is seen as she uses her mobile handset in this arranged photo taken outside an O2 mobile phone store, operated by Telefonica SA, in Horsham, U.K., on Wednesday, March 25, 2015. Li Ka-shing's Hutchison Whampoa Ltd. agreed to acquire Telefonica's O2 unit, creating Britain's biggest wireless provider by customers and marking a milestone in the billionaire's efforts to remake the Hong Kong conglomerate. Photographer: Jason Alden/Bloomberg via Getty Images