The correct answer is the Hotel (delete "tel". Needed to get past the filter) Chi Minh Trail.
The trail was a series of mountain and jungle paths that were used by the VC forces to attack American and American aligned forces.
Advantageously, the trail ran through Laos and Cambodia, making them ostensibly off limits to American forces as Laos and Cambodia were not part of the theatre of war.
<span>Like many Mesoamerican pyramids, each was constructed around a core of rubble held in place by retaining walls. The walls were then faced with adobe bricks, and then covered with limestone. The base of the Pyramid of the Sun measures 730 feet per side, with five stepped terraces reaching a height of some 200 feet.</span>
A citizen who protests a company's violation of freedom of speech.
It’s b of course because the others make zero sense