Multiplexing is a technique that is used to send more than one signal over a single line.

A. Digitizing
B. Duplexing
C. Streaming
D. Multiplexing 

🧠 Explanation:

Multiplexing sends multiple signals over a single line, enhancing communication efficiency. For tech students, this highlights telecommunications, making it a key topic for studying network systems, data transmission, and IT infrastructure. It’s vital for modern networks. Understanding this ensures knowledge of data transfer techniques. It’s essential for analyzing network performance, communication systems, and technology applications. Studying multiplexing offers insights into how networks optimize data flow, crucial for computer science, engineering, and IT, ensuring efficient communication in digital systems and telecommunications infrastructure.