Concept:Active listening is a communication technique that requires the listener to fully concentrate, understand, respond, and remember what is being said.Explanation:Listening is more than just hearing sounds. It involves processing speech into words and sentences to create meaning. Active listening means paying close attention, showing understanding, and giving feedback to the speaker. This feedback can be restating or paraphrasing what was heard in your own words to confirm understanding. In contrast, passive listening involves little or no visible response or engagement. Active listening helps build clear communication and stronger relationships. Therefore, the key feature of active listening is giving full attention and understanding to the speaker.Answer:A. Listening with attention and understanding