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A meter socket is indeed necessary for utility metering of service, which underlines the importance of option B. The meter socket serves as the crucial interface between the electrical service of a building and the utility company’s metering equipment. This socket allows the utility to measure electricity consumption accurately, which is essential for billing purposes.

In residential and commercial installations, the meter socket is typically required to ensure compliance with utility standards and NEC guidelines. It allows for safe and secure connection of the electrical service, protecting both the property and the utility workers. Moreover, not having a meter socket would impair the ability of the utility to monitor electrical usage, which is fundamental to providing service.

The other options misrepresent the role and requirement of the meter socket. Some suggest that it is only necessary in specific contexts, such as commercial installations or based on service amperage, which does not align with universal practices imposed by utility companies and the NEC. Additionally, stating that meter sockets might be optional depending on local regulations overlooks the fundamental requirements established for electrical service installations throughout most jurisdictions.