The error is caused by the missing class declaration for the custom condition class. According to the Adobe Commerce documentation, to create a custom customer segment condition, the class must extend the \Magento\CustomerSegment\Model\Condition\AbstractCondition class and implement the \Magento\CustomerSegment\Model\Condition\Combine\Interface interface. The class must also declare its name, label, value type, and attribute code properties. Option B is the only option that correctly declares the class with the required properties and inheritance. Option A and Option C are incorrect because they do not extend the AbstractCondition class or implement the CombineInterface interface, and they do not declare the name, label, value type, or attribute code properties.

References:

Create a customer segment condition | Adobe Commerce Developer Guide

AbstractCondition | Adobe Commerce Developer Guide