Two pillars are placed vertically 8 feet apart. The height difference of the two pillars is 6 feet. The two ends of a rope of length 15 feet are tied to the tips of the two pillars. The portion of the length of the taller pillar that can be brought in contact with the rope without detaching the rope from the pillars is

• A. less than 6 feet
• B. more than 6 feet but less than 7 feet
• C. more than 7 feet but less than 8 feet
• D. more than 8 feet