Which statement accurately describes the relationship between processes and threads in the Cisco IOS XR Software?

A process is a unit of execution with an execution context that includes a stack and registers, while a thread is an executable portion of the software code.

A thread can exist independently of a process and does not share resources with the parent process.

A process and a thread are the same; they both run within their own memory space.

A process is an executable portion of the software code running within its own memory space, and a thread performs the subtasks of the overall process, sharing resources and the address space of the parent process.