Which of the following is a common barrier to effective communication in a team?

Ambiguous language and jargon can significantly hinder effective communication within a team. When team members use terms or phrases that are unclear or specific to certain backgrounds or professions, it creates confusion and can lead to misunderstandings. This lack of clarity in communication often results in misinterpretation of messages, misguided actions, and even conflict among team members.

In contrast, options like frequent feedback sessions, regular team meetings, and open-door policies are practices that generally promote open communication. Feedback sessions allow for clarification of expectations and performance, team meetings facilitate sharing of information and ideas, and open-door policies encourage team members to discuss their concerns and thoughts freely. Therefore, the presence of ambiguous language contrasts sharply with these beneficial communication practices, making it the correct choice as a barrier.