Read the passage.
Domesticated dogs and cats that are not fenced present many problems for neighborhood communities. These animals run wild, ruin yards, and often frighten children and adults. Barking has also been a problem for people unlucky enough to live near the noise nuisance. All of this happens because leash laws are not enforced. What is the cause of the loose pets?
A. Loose pets ruin yards and frighten children. B. Barking has been a problem for people living nearby. C. Dogs and cats run wild. D. Leash laws are not enforced.