Please choose the correct ending to complete the given sentence: Work World: [header] How to deal with frustrated employees [title] Keep the lines of communication open. [step] One of the major reasons for employee frustration is a lack of communication. Sometimes, for example, supervisors do not bother to explain work tasks to each employee.

Ending1: Sometimes, they simply ignore employees when they are not available. [substeps] With this in mind, consider whether the workplace is one where the frustration of an employee affects everyone. Ending2: Rather, they may just want to hear what needs to be done. If you find yourself drifting off track with your own employee, interrupt them with questions. Ending3: Usually, they only return to their office for tasks to be completed and forget to address any issues they have with each employee. This is often a result of extreme boredom and lack of confidence. Ending4: This lack of communication causes frustration among employees, as they do not really know what to do, when to do it, or why they're doing it. [substeps] Make sure your instructions are crystal clear.

Answer format: ending1/ending2/ending3/ending4