Which scenario is an example of understatement?   a. the sign above the carrots in the produce section reads: "eyesight not so good these days? have a carrot, and it will lift the haze."  b. travis shows his spanish test to his mother, "look, mom, i scored a 100, which means i can speak spanish fluently! "  c. the police officer stops a speeding driver and asks, "sir, did you know you were going 40 in a 65 mile-per-hour zone? i'm going to need you to speed up."  d. the doctor tells juan, "your leg is broken in three places, so you are going to be sore for a while."