Which of the Following Is the Best Example of the Proximity

Which of the following is the best example of the proximity rule that, for service firms, proximity to market is the most important location factor?

A) Soft drinks are bottled in many local plants, where carbonated water is added to proprietary syrups that may have been shipped long distances.
B) Few people will travel out of state for a routine haircut.
C) Patients will travel very long distances to have their hernia surgeries performed at Shouldice Hospital.
D) Furniture makers choose to locate near the source of good hardwoods, even though it means locating near other furniture manufacturers.
E) Metal refiners (smelters) locate near mines to accomplish significant weight reduction near the metal's source.