One Negative Aspect of Celebrity Cruises Installation and Implementation of Various

One negative aspect of Celebrity Cruises installation and implementation of various technologies on its boats and for its customers' use is __________.

A) the automatically unlocking cabin door locks all had to be replaced, which was quite expensive.
B) that customers largely responded in a negative way to the need to utilize various devices for optimal experiences.
C) that to implement the optimized wayfinding, the cruise ships all had to build new infrastructures.
D) customers were unwilling to pay more for VR views of the sea and the cruise line has ended up with many empty rooms on its voyages.