Which of the following best describes the effect of not following up after communication?

Not following up after communication can indeed best be described as leaving questions unanswered. When communication occurs, whether in a professional setting or otherwise, it's essential that all parties involved have clarity on the topics discussed and any actions required. Without follow-up, crucial points may be overlooked, leading to confusion or misinterpretation of the information shared. This can hinder decision-making and progress on projects as individuals may remain uncertain about next steps or specific details.

In contrast, solidifying professional relationships typically requires ongoing dialogue and validation of the communication that has taken place; without follow-up, relationships can stagnate. Ensuring clarity of the initial message relies on confirming understanding between parties, which is not possible without some form of follow-up. Furthermore, promoting ongoing conversations necessitates engagement and interaction, which is unlikely to happen if initial communications are left unaddressed. Therefore, the best description of the impact of not following up is indeed that it may leave questions unanswered, creating barriers to effective communication and understanding.