Please inspect the following design and answer the following question. class Apartment { protected int squareFootage: protected int numberOfBedrooms. } public int getBedroom Count() { return numberOfBedrooms; } public void addBedRoom (int saft) { this square footage = saft; this numberOfBedrooms += 1; } } class PenthouseSuite extends Apartment { public PenthouseSuite() { this numberOfBedrooms = 4; } class Studio extends Apartment { public Studio() { this numberOfBedrooms = 0; } public void addBedRoom (int saft) { this square footage = saft: } a. Which SOLID design principle does the above design violate? (3pts) b. Illustrate with an example code to show how the above design can cause issues. (7pts)