Answer: Because is important that the others know what you choose
Explanation: In the business area, when you are making a decision is important to tell others in order they know what is going on and how to act. Communication is an important skill and people at work, especially the boss, need to be able to communicate their decision.
If I am in charge of any type of business and It to make a change and made a decision, is important for the people that work with me to know what I am going to do.