Which of the following malware types is MOST likely to execute its payload after Jane, an employee, has left the company?

A rootkit is designed to hide malware and maintain persistent privileged access to a system; it does not use conditional triggering logic tied to an employee's status.

A logic bomb is code that remains dormant and harmless until a predefined condition is satisfied - a classic scenario is an employee planting one to trigger after their account is removed or after a certain date following their departure. This makes it the ideal tool for disgruntled employees seeking delayed revenge, as the payload executes after they have left and established an alibi.

A worm self-replicates and spreads across networks autonomously; its execution is immediate and not contingent on external conditions like an employee's departure.

A botnet is a network of compromised machines controlled by a command-and-control server; it executes commands in near real time and is not designed around deferred conditional triggers.