Given: The Tool class is a base class. Two classes, HandTool and PowerTool are derived from the Tool class.

Based on this UML class diagram, which is true about the pure virtual function, showDescription.

$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ Tool$\_\_\_\_\_\_\_($base class$)\_\_\_\_\_$

# id : string

# toolCount : int : static

$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

$+$ Tool$($id : string$)$ : $//$ This is the only Tool class constructor $($no default constructor$)$

$+$ ~Tool$()$ :

$+$ showWarranty$()$: void : virtual

$+$ showDescription$()$ : void : pure virtual

$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

Group of answer choices

A Tool class object can exist, but cannot be inherited.

There cannot be a showDescription function in a derived class.

The Tool class cannot be instantiated. In other words, in main$(),$ a Tool object cannot be created.

There can only be one pure virtual function in a class

None of the above