Which of the following sentences from a rhetorical text includes a qualifier?

1. According to one recent survey, 37% of adults have experienced severe harassment online, including bullying and unwanted contacts.
2.Requiring users to provide their real names would likely cut back on some of the more egregious instances of trolling and harassment.
3.Fake names and made-up handles allow users to wield their anonymity as a shield for spreading hatred and inciting dangerous conflict.
4.Critics point to concerns over privacy and freedom of expression, but private companies have the right to set the terms for the use of their platforms, and user safety must come first.