Vignette #1 You and Your Friend Karen Are Having Lunch

Vignette #1 You and your friend Karen are having lunch out and you order an iced tea. Karen sees you reach for the pink packet of Sweet 'N Low, stops your hand, and says, "Don't you know that stuff is bad for you? I read that it causes cancer, and I also know people who say that Equal, another nonnutritive sweetener, gives them headaches." As your conversation continues, let's show Karen how well informed you are concerning nonnutritive sweeteners by answering the following questions:
Which nonnutritive sweetener should be entirely avoided by individuals with phenylketonuria (PKU) ?

A) aspartame
B) saccharin
C) neotame
D) sucralose
E) xylitol