Final answer:
The block considered a block to effective communication is directing the focus. Using silence and cliches can also hinder effective communication. Defining the problem is important for effective communication.
Step-by-step explanation:
The block considered a block to effective communication is directing the focus. When you direct the focus in communication, you are steering the conversation or attention towards a particular topic or aspect, which can hinder open and effective communication. For example, if someone is trying to express their feelings or concerns, directing the focus towards something else can prevent them from fully sharing their thoughts and emotions.
Using silence or cliches, on the other hand, can often be seen as communication blockers but they are not explicitly mentioned in the options provided. Silence can create confusion and uncertainty, while using cliches may oversimplify or dismiss the complexity of the subject being discussed.
Defining the problem, on the other hand, is a crucial step in effective communication. By clearly defining the problem, all parties involved can have a shared understanding of the issue at hand and work towards finding a resolution.