Final answer:
Alice is currently in the Social Engineering phase of the NIST penetration testing process by gathering information from the social media feeds of staff members.
Step-by-step explanation:
Alice is currently in the Social Engineering phase of the NIST penetration testing process. This phase involves tricking or manipulating individuals into divulging sensitive information or granting access to systems. By gathering information from the social media feeds of staff members, Alice is using social engineering techniques to gather data that can be potentially exploited during her penetration test.