Unified communications (UC) integrates various communication tools such as instant messaging, email, voice, video conferencing, and collaboration platforms into a single interface. The primary benefit is enhanced collaboration, allowing teams to work together seamlessly across multiple channels and geographic locations.

Option A: Incorrect—UC focuses on communication, not resource speed.

Option B: Incorrect—UC does not provide additional storage.

Option C: Incorrect—billing is unrelated to unified communications.

Thus, the benefit of unified communications is enhanced collaboration.