Answer:
3. All the public and protected members of class BasePlusCommissionEmployee are inherited as public and protected members, respectively, into class CommissionEmployee.
Step-by-step explanation:
The colon ( : ) indicates inheritance. However, in this notation CommissionEmployee is the base class and BasePlusCommissionEmployee is the subclass.
The subclasses can inherit members and functions from the base class. Since BasePlusCommissionEmployee is the subclass, it must be the one that inherits, not CommissionEmployee class.