Question

which evidence supports the point that off - leash dogs with their owners are safer than dogs on leashes? add it to the chart.
point
off - leash dogs are safer to be around than leashed dogs.
detail
dogs on leashes may attack because they cant run from danger.
detail
?
dog bites in new york city have gone down since off - leash laws were passed.
reports show that off - leash dogs do not need to protect their food.
experts say that off - leash dogs are usually friendly around other dogs and people.

Explanation:

To support the point that off - leash dogs are safer, we need evidence that directly relates to the safety of off - leash dogs compared to leashed ones. The option "Experts say that off - leash dogs are usually friendly around other dogs and people" directly states that off - leash dogs are friendly (a sign of being safe) around others, which supports the point. The "Dog bites in New York City..." option is about a correlation with laws, not directly about off - leash dogs' safety relative to leashed. The "Reports show that off - leash dogs do not need to protect their food" is not related to being safer than leashed dogs.

Answer:

Experts say that off - leash dogs are usually friendly around other dogs and people.