Which is NOT an example of a centripetal force?
(A) About nine-tenths of Swedes speak Swedish as their first language.
(B) About 95 percent of Iranians belong to the Shia Muslim faith.
(C) The Mindanao region of the Philippines has poor infrastructure
and inadequate basic services.
(D) Since the end of World War II, Europe has worked to remove trade
and political barriers between countries.
(E) About 96 out of every 100 people in Thailand identify as part of
the Thai ethnic group.