In the Tech World,about 90% of the World's Nearly One

Multiple Choice

In the tech world,about 90% of the world's nearly one billion PCs run on Microsoft's operating systems and 80% use Intel's microprocessors.This represents which aspect of the Porter's five forces model?

A) bargaining power of suppliers
B) bargaining power of buyers
C) threat of substitute products
D) rivalry among competitors
E) threat of new entrants