Answer:
Vertical communication is the communication where information or messages flows between or among the subordinates and superiors of the organizational.
Horizontal communication is the transmission of information between people, divisions, departments or units within the same level of organizational hierarchy. You can distinguish it from vertical communication, which is the transmission of information between different levels of the organizational hierarchy.
Explanation:
C. Realistic. If your goals are not realistic, then they are un-achievable and you will not make it.