A tech company's networking app is popular among college students for connecting with corporate recruiters. The company wants to improve its reputation by taking a strong stance on user data privacy. What action is most likely to elevate the brand's recognition among college students through purpose$-$driven marketing?

Offering a one$-$day premium membership for free

Releasing a limited$-$time, privacy$-$themed filter for user profiles

Hosting a virtual "Data Privacy Day" seminar focusing on new released app features explained by privacy experts in the field

Implementing end$-$to$-$end encryption for all user messages without a specific announcement