the Andes mountains are the longest of all of the world’s continental mountain ranges. which of the following correctly explains how this mountain range was formed? a. tectonic plates collided, and earth’s crust was pushed upwards b. tectonic plates separated, and exposed magma boiled upwards. c. tectonic plates slide past each other and pushed material upwards. d. tectonic plates collided, and thousands of volcanoes were formed.