Answer:
The correct answer is letter "A": cooperating with one another.
Explanation:
In front of consumer hesitation about technology being introduced in the market, companies selling those products should join forces to keep buyers updated. They can achieve that by providing their sales team with flyers where the main attractive features of the new technology can be outlined promoting customers to request additional information to clerks in an attempt to have them close sales.
Besides, companies can organize events where all of them show consumers their products using the new technology introduced where customers can interact with it and learn more about how it works.