Which nation borders Afghanistan, Pakistan, Iraq, and Turkey?
Explanation
Answer: D -Iran borders Afghanistan, Pakistan, Iraq, and Turkey, making it the crossroads of a highly volatile region. It is also relatively close to Syria, Saudi Arabia, and Israel. Iran has experienced significant internal instability since the early 1950s, some of which was aided by Western factions (including the United States and United Kingdom). As of 2013, the United States does not have a diplomatic relationship with Iran; concerns about nuclear proliferation-particularly given the instability of the region-have caused friction between the two nations.
