Final answer:
CWC is a one-time charge for the installation of new equipment.
Step-by-step explanation:
The correct statement when speaking to a customer about Customer Work Charged (CWC) is option d) CWC is a one-time charge for the installation of new equipment. This means that if a customer asks for any extra work or additional features that go beyond the standard installation process, they will incur CWC fees. These charges are meant to cover the costs of the extra labor and materials required to fulfill the customer's specific requests.