Read the excerpt from a ruling of the Court (Civil Action: American Library Association v. U.S.A.) and answer the following questions by choosing the most appropriate answer.
Under strict scrutiny, a public library's use of filtering software is permissible only if it is narrowly tailored to further a compelling government interest and no less restrictive alternative would serve that interest. We acknowledge that use of filtering software furthers public libraries' legitimate interests in preventing patrons from accessing visual depictions of obscenity, or in the case of minors, material harmful to minors. Moreover, use of filters also helps to prevent patrons from being unwillingly exposed to patently offensive, content on the Internet.