Answer :
Final answer:
The BNC connector is the type used for RF connections at frequencies up to 150 MHz. It is well suited for quick connect/disconnect applications and comes in both 75-ohm and 50-ohm versions for different types of applications. The correct option is (a).
Explanation:
The connector type commonly used for RF connections at frequencies up to 150 MHz is the BNC connector. BNC stands for Bayonet Neill-Concelman and it is a type of RF connector used for terminating coaxial cable. BNC connectors are used in a variety of applications, particularly for quick connect/disconnect applications such as in television, radio, and other RF equipment.
The BNC connector provides two primary mechanical configurations; the 75-ohm version is used primarily for video and DS3 telecom applications and the 50-ohm version is used in higher performance 4K video, antenna connections, and connectivity for general lab use.
