Senior executives at a large tire company learned that a line of tires had a tendency to fall apart in very warm weather. This resulted in several vehicle accidents in the Middle East and South America. However, the executives did not hear about these problems until several weeks after the lower-level managers learned about the same. Although the senior executives encourage staff to openly communicate all information, the lower-level staff held back the information for fear that they might lose their jobs. Which communication concept best describes this communication situation?

Filtering
Cleaning
Adjusting
None of the above