This year, a country has relaxed controls on the sale of civilian firearms, and the incidence of shootings has risen rapidly. According to statistics, most of the shootings are related to the abuse of legally purchased civilian firearms. Restrictions on the sale of civilian firearms should be strengthened. Which of the following best supports this statement? ['The number of firearms smuggled in the country is far greater than the number of firearms purchased legally.', 'Current severe punishment for shooting offenders is not sufficient deterrent.', 'Most civilian firearms sold in the country are not lethal.', 'Strict restrictions on the sale of civilian firearms can get national support.']