Which sentence is written using informal language? A) Traffic was detoured through downtown Atlanta. B) The fire drill sounded just before second period. C) Tony picked up the tab for our dinner last

Which sentence is written using informal language? A) Traffic was detoured through downtown Atlanta. B) The fire drill sounded just before second period. C) Tony picked up the tab for our dinner last night. D) The selection on the menu was impressive, but expensive. 99 points