Which of the following is a known barrier to effective communication in healthcare settings?

A. Language barriers and hesitation to speak up are issues that can lead to misunderstandings, errors in care, and reduced patient safety, making them well-documented barriers to effective communication. B. Written care plans support clarity and continuity of care, not a barrier. C. Standardized tools like I-SBAR-R improve communication by providing a structured format. D. Team STEPPS is a communication and teamwork training system that enhances, rather than hinders, effective communication.