Garbage Collection provides what primary benefit?

• A. A form of automatic memory management that frees up memory space when it is no longer needed.
• B. A process for generating cryptographic hashes.
• C. A way to manage user permissions in a system.
• D. A type of HTML tag.

Answer: (A)

Garbage collection is about automatic memory management. Its primary benefit is freeing memory space that the program no longer needs, so developers don’t have to manually deallocate objects. This helps prevent memory leaks and makes long-running programs more reliable, since the runtime automatically reclaims memory when objects are no longer reachable. It usually works by tracking which objects can still be referenced from the running program and reclaiming the memory of those that cannot be reached anymore. The other options describe cryptographic hashes, user permissions, and HTML markup, which are unrelated to memory management.