The correct answer is letter B
The Demilitarized Zone of Korea consists of a four meter electric fence with barbed wire on top, which spreads for 280 kilometers from east to west, following the summits and then descending to the valleys, covering the entire land section of the peninsula. Further on, two kilometers away, the demarcation line runs. On both sides of the DMZ are bunkers, artillery pieces and two armies in a state of constant attention. A peculiarity of this set is the presence of huge loudspeakers installed by the government of South Korea in 11 points along the Demilitarized Zone, and that emit messages calling on the North Koreans to rebel against the regime of the north, which in turn or another one fires at the devices trying to silence it
