Answer:
b. Companies are benefiting from e-commerce by buying and selling their products and services to consumers online.
Explanation:
This is the example that shows the pure application of IT in business. E-commerce platforms are something every business that has an online presence has in common. Although businesses can differ by industry or niche, e-commerce is a common information technology trend.
The A. answer may indicate that it is IT related, but it is actually more related to globalization and outsourcing.