Universal Containers would like to route SMS text messages to a service rep from an...

Comprehensive and Detailed In-Depth Explanation:

UC wants to route SMS text messages from an Agentforce Service Agent to a service rep using a flow. Let’s identify the correct Service Channel.

Option A: MessagingIn Salesforce, the "Messaging" Service Channel (part of Messaging for In-App and Web or SMS) handles text-based interactions, including SMS. When integrated with Omni-Channel Flow, the "Route Work" action uses this channel to route SMS messages to agents. This aligns with UC’s requirement for SMS routing, making it the correct answer.

Option B: Route Work Action"Route Work" is an action in Omni-Channel Flow, not a Service Channel. It uses a channel (e.g., Messaging) to route work, so this is a component, not the channel itself, making it incorrect.

Option C: Live Agent"Live Agent" refers to an older chat feature, not the current Messaging framework for SMS. It’s outdated and unrelated to SMS routing, making it incorrect.

Option D: SMS ChannelThere’s no standalone "SMS Channel" in Salesforce Service Channels—SMS is encompassed within the "Messaging" channel. This is a misnomer, making it incorrect.

Why Option A is Correct:

The "Messaging" Service Channel supports SMS routing in Omni-Channel Flow, ensuring proper handoff from the Agentforce Service Agent to a rep, per Salesforce documentation.