How should UC ensure its Technicians can access Knowledge Articles offline?

Universal Containers (UC) wants to deploy Knowledge to its field team.

How should UC ensure its Technicians can access Knowledge Articles offline?
A . Write a workflow that associates Articles to Work Orders based on a picklist on the Work Order.
B . Use Work Types to assign associated Articles to Work Orders.
C . Use the Salesforce mobile app with deep linking to the Salesforce Field Service mobile app.
D . Create a custom mobile app that syncs articles based on Service Appointment assignments.

Answer: B