Final answer:
Active Listening is the most useful basic listening tactic out of the given options.
Step-by-step explanation:
The most useful basic listening tactic out of the given options is Active Listening. Active Listening is the practice of fully focusing on, understanding, and responding to the speaker. It involves giving one's full attention, making eye contact, asking clarifying questions, and providing verbal and non-verbal cues to show understanding and engagement.
Selective Hearing, on the other hand, involves choosing to listen to certain things while ignoring others. This can hinder effective communication and understanding.
Passive Listening refers to casually hearing without actively engaging or trying to understand the speaker's message. Inattentive Hearing, similarly, involves not paying attention to the speaker at all.