What word describes Sierra Madre

the main mountain system of Mexico, extending for 2500 km (1500 miles) southeast from the N border: consists of the Sierra Madre Oriental in the east, the Sierra Madre Occidental in the west, and the Sierra Madre del Sur in the south.

Explanation:

Sierra Madre is a city in Los Angeles County, California whose population was 10,917 at the 2010 U.S. Census, up from 10,580 at the time of the 2000 U.S. Census. The city is in the foothills of the San Gabriel Valley below the southern edge of the Angeles National Forest. Pasadena and Altadena are to its west, with Arcadia to its south and east. Sierra Madre is known as "Wisteria City", and its city seal is decorated with a drawing of the now widely known 500-foot vine. It is also called the "Village of the Foothills" and was an All-America City in 2007.

it sounds like either a or c

the correct answer would be true friction causes the faults to slip or collide