An attacker tries to develop a long$-$term relationship with staff members within the target organization. They may pose as a prospective employee and gather significant information about software $($applications and systems$)$ being used at the target company, how tightly it is controlled, and how well it is maintained. Offering a sympathetic ear to complaints about the systems being used, attackers can spot potential vulnerabilities$-$either in those systems or with other hum in the organization to target with social engineering efforts. According to the scenario, this describes which of the following attacks?

A $$

Cat$-$fish

B $$

Privilege escalation $$

Distributed denial$-$of$-$service $$

Brute$-$force