Explanation
Sharing the Folder with Quick Text for each language is the recommended solution to meet the requirements, because it allows CK to consolidate, translate, and share the common responses as Quick Text. Quick Text is a feature that enables service agents to insert predefined messages, such as greetings, answers, or closing statements, into emails, chats, tasks, events, and more. Quick Text can be organized into folders and shared with different groups of users based on their language or role. Quick Text can also be translated into multiple languages using Translation Workbench or a third-party service. Verified References: : Quick Text Overview :: Share Quick Text Using a Folder in Lightning Experience : : Translate Quick Text

Explanation
Creating an entitlement process and setting up milestones are steps that should be completed to hold service reps accountable to customer Service Level Agreements (SLAs). An entitlement process defines the timeline and steps required to deliver support to customers based on their entitlements. A milestone is a critical step in the support process that has a target date and time by which it must be completed. For example, a milestone could be responding to a customer within 24 hours or resolving a case within 5 days. By creating an entitlement process and setting up milestones, service reps can track their progress and ensure they meet the SLAs for each case. Verified References: Service Cloud Consultant Certification Guide & Tips, Set Up and Manage Entitlements and Milestones