Question

read the following passage:
\cat owners hold several truths to be self - evident: that cats are better than dogs; that cat people are better than dog people;
that life is incomplete without at least one feline companion. however, not all cat owners agree whether their cats belong
indoors or outdoors.
\indoor advocates point out that cats lead longer and more comfortable lives when they arent exposed to all the predators,
poisons, diseases, fights, and accidents that lurk outside. their owners are happier too, because they dont have to worry about
their pets safety, or put up with the animals bringing fleas and mangled birds and rodents into the home. in addition, outdoor
cats do significant damage to the environment. free - roaming felines kill billions of songbirds every year and have even caused
the extinction of dozens of small mammal species.
\on the other hand, owners who support letting their pets outside say it is cruel to interfere with a cats instinctive desire to
hunt and roam. they claim that a house - bound lifestyle is actually less healthy because the animals grow bored and fat. these
owners also say that anyone who truly loves their pet should be happy to accept some worry and mess in exchange for seeing it
live a happier, more natural life. while the outdoor faction acknowledges that their cats kill wildlife, they point out that the toll
includes pests like rats and mice, which damage crops, attack other animals, and spread human diseases.\
what are the points of comparison used to compare keeping cats inside and letting cats outside?
inside cats are healthier, outside cats are happier
cat health, owner happiness, environmental impact
what is best for the cats, what is best for wildlife
natural and unnatural cat behavior, being a responsible owner

Explanation:

The passage compares keeping cats inside and letting them outside. Indoor advocates mention cat health (longer, more comfortable lives without exposure to predators, etc.), owner happiness (no worry about safety, less mess), and environmental impact (outdoor cats damage the environment). Outdoor supporters also touch on cat - related aspects (health - though in a different way - and happiness in a more natural life).

Answer:

cat health, owner happiness, environmental impact