Which sentence best summarizes the ideas in paragraph D?
a. Despite difficulties, the seven-mile Mont Blanc tunnel between France and Italy opened in 1965 and has
saved time for millions of drivers.
b. The Mont Blanc tunnel did not open until sixteen years after the governments of France and Italy
agreed to construct it.
C. Before the Mont Blanc tunnel was built, engineers and workers met under the mountain to discuss the
problems.
d. People who drive through the Mont Blanc tunnel are not only English people.