Value-added service is essential for both internal and external customers as it enhances relationships and satisfaction. Internal customers include employees whose needs should be met for a productive work environment. External customers are clients who value additional services that improve their experience with a company. ;
Practicing value-added service is vital for both internal and external customers. Internal customers benefit from improved working conditions and support, while external customers appreciate enhanced experiences through additional services. Therefore, the correct answer is option A: Both internal and external customers.
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