Communication Channel Calculation_Need help
John is in charge of a project that deals with laying out a lavish 18 hole golf course.The project work is in progress. He also has a number of contractors working on the project. Being an experienced manager, he knows that communication is key to success of the project. He has identified 10 stakeholders with whom he needs to communicate. Due to some internal and external organizational changes at the client end, three new stakeholders have been added with whom he needs to communicate with. He also had to reduce one of the contractors with whom he were communicating. How many communication channels does he has now?
WHich one will be the right answer and why. Please help me to understand.