Cul-de-sacs have appeared in plans of towns and cities before automobiles filled the streets in 20th century. The earliest example of cul-de-sac was unearthed in El-Lahun, Egypt. The streets in El-Lahun are laid out straight and intersect at right angles with 15 narrow and short dead-end streets.

What does French phrase cul-de-sac stand for?
A.
straight street
B.
city planning
C.
dead-end
D.
intersections