The correct answer is D. Leash laws are not enforce
Explanation:
The word cause refers to the factor or situation that leads to consequences or effects. In writing, the cause can be usually identified because it is presented as the element that explains or leads to other elements and introduced with linking words such as "because", "due to", "as" or "since", while the effects can be linked with words such as "therefore", "as a result" or "consequently" and are usually enumerated or presented in different points.
In the case of the excerpt presented, the author aims at explaining the effects or consequences of "domesticated dogs and cats that are not fence" or the loose pets, for doing this the author first presents the effects in different points such as "these animals run wild", "frighten children and adults" or "braking has also been a problem", and then introduces what seems to be the cause using the linking word "because" and stating "All of this happens because leash laws are not enforced". This means the author attributes the effects to the lack of enforcement to leash laws and therefore it can be concluded the cause of the loose pets or "domesticated dogs and cats that are not fenced" is the "leash laws are not enforced.
