A farmer wished to construct a rectangular fence with one side along a barn. The farmer has 240 feet of fence and wishes to have the length be three times the width. If the side of the barn accounts for the length of the fence, find the dimensions of the fence.
A144 feet by 48 feet
B192 feet by 48 feet
C120 feet by 40 feet
D108 feet by 58 feet
A144 feet by 48 feet
B192 feet by 48 feet
C120 feet by 40 feet
D108 feet by 58 feet