What is a cause and effect relationship that takes place in the Article? A. Because

What is a cause and effect relationship that takes place in the Article? A. Because employees on an April 2017 United Airlines flight could
not find volunteers willing to give up their seats, larger financial
incentives were offered for doing so.
B. Because people with smartphones can post videos of negative
customer experiences on social media, power has shifted to
consumers.
C. Because customers with smartphones were acting as
whistleblowers, Chicago Department of Aviation security
officers needed to board an airplane in April 2017.
D. Because there isn't a way for customers to report complaints,
Comcast had a famous public relations issue one year.