Kristina manages a hair salon, and she is looking for a new head stylist to lead her team of hairdressers. She posts an ad on several job websites and uses those websites, along with LinkedIn, to look for qualified candidates. She also watches her employees work to see if any of them exhibit the skills she is looking for in a head stylist. Once she receives a few applications, finds a few qualified candidates, and determines that one of her employees might be a good fit, she sets up interviews with these potential candidates to decide who to hire. Which human resources activity does this scenario describe