The correct answer is: B. many silicon chip manufacturing firms are located there.
Silicon Valley is a region in the southern part of the San Francisco Bay Area in Northern California that serves as a global center for high technology and innovation. The region is home to many of the world’s largest technology companies, including Apple, Google, Facebook, and Tesla.
The name “Silicon Valley” is a reference to the region’s large number of silicon chip manufacturing firms. Silicon is a semiconductor material that is used in the manufacture of computer chips. The first silicon chip was developed in 1958 at Fairchild Semiconductor in Mountain View, California. Since then, Silicon Valley has become the world’s leading center for the development and manufacture of semiconductor chips.
The other options are incorrect. Option A is incorrect because there are no huge deposits of silicon found in the Santa Clara Valley. Option C is incorrect because Santa Claus does not visit Silicon Valley every Christmas. Option D is incorrect because the Santa Clara Valley is not full of large grain sand.