Which One of the Following Is a Physical Change

Which one of the following is a physical change?

A) When ignited with a match in open air, paper burns.
B) In cold weather, water condenses on the inside surface of single pane windows.
C) When treated with bleach, some dyed fabrics change color.
D) When heated for a period of time, sugar turns dark brown.
E) Grape juice left in an open, unrefrigerated container turns sour.