Reconnaissance Incidents and CFR

Are you considering the CyberSec First Responder (CFR) certification. If so, see if you can answer this sample practice test question.
Q. An APT has launched an attack on an organization. At which stage of the attack would the APT gather as much information as possible about the organization, including information about the technology it uses, its personnel, and its online presence?
A. Fingerprinting B. Footprinting C. Enumeration D. Scanning

Check out the answer and full explanation here.