Context: She \'s big on magic wands and transformation right now . Em felt she was running a little late , so she said , " We \'ll walk quickly . " She did . I had to stretch my legs a bit to keep her pace , and she was shorter than me by a foot and was wearing a pack .
Question: Why is it interesting to know Em 's height ?
Option 0: A tall person can cover distance quickly , presumably Em will be slow .
Option 1: None of the above choices .
Option 2: Em did a little magic with the wand to make herself short .
Option 3: Em transformed into a person one foot shorter and walked quickly .
Answer: 0