question: There is a boat attached to a dock by a rope.  Hanging from the boat is a ladder.  The ladder has three bars on it.  Each bar is a foot long.  There is a foot and a half between each bar.  Three bars are visible above the water.  When the tide rises 3 feet how many bars will be visible?
choices.label: A B C D E
choices.text: level fisher three boats float hush lagoon