Which of these is an incorrect use of parallel structure?
My dog loves to go for walks, chase a Frisbee, and swim in the lake.
A new puppy needs a healthy diet, plenty of exercise, and regular trips to the vet.
The whole time you were gone, the dog was barking, whining, and he looked out the window.
When I came home, the floor was wet, pillows were chewed, and a plant was knocked over.