Read the following Swift code and then answer the questions that follow. Write your answers in blank space anywhere near the corresponding question.

class Dog {

let name: String

var energy: Int

var happiness: Int

var isContent: Bool { return energy > 5 && happiness > 5 }

init(name: String) {

self.name = name

energy = 10

happiness = 10

}

func eat() {

energy += 3

happiness += 3

daydream()

}

func run() { energy -= 5 }

private func daydream() { happiness += 3 }

}

class GoldenRetriever: Dog {

var loyalty = 10

override var isContent: Bool { return super.isContent && loyalty > 5 }

override func eat() {

super.eat()

loyalty += 1

}

func playWithOwner() { loyalty += 5 }

}

let rufus = Dog(name: "Rufus")

let duke = GoldenRetriever(name: "Duke")

A. What is printed to the console after the following code executes?

rufus.run()

rufus.eat()

rufus.run()

print(rufus.isContent)

print(rufus.energy)

B. Why will each of these two lines produce an error?

rufus.playWithOwner()

rufus.daydream()