In c$++$ A museum keeps a record of all its exhibited artworks. An art object may be a painting,

a sculpture, or a statue.

Design an abstract class ArtWork that should have the following member variables:

$$ total$\_$number: This should be a static variable that keeps count of the total num

ber of artworks that are recorded.

$$ serial: A serial number that should be automatically generated when an object of

a derived class is created.

$$ artist: This stores the name of the artist.

$$ year: This stores the year in which the art object was created.

The class ArtWork should have the following member functions:

$$ A constructor that increments the member variable total$\_$number and assigns the

serial number to the current value of total$\_$number.

$$ A mutator function.

$$ An accessor function.

Derive a Painting class from the ArtWork class. It should have the following members:

$$ type: This should denote the type of painting $($like oil, watercolor, etc.$).$

$$ drawn$\_$on: This should store the material on which the painting is drawn $($like can

vas, paper, wood, etc.$).$

Derive a Sculpture class from the ArtWork class. It should have the following mem

bers:

$$ height: This should store the height of the glass box required.

$$ size: This should store the length of the glass box. The length and breadth of the

boxes are always the same.

$$ material: This should store the material with which the sculpture is made $($like

stone, wood, wax, etc.$).$

Derive a Statue class from the ArtWork class. It should have the following members:

$$ diameter: This should store the diameter of the pedestal required.