What would be the correct advice?

The customer wants to offer Web Assistant content in several languages and wants to know whether it is necessary to create content in each language for the initial rollout.

What would be the correct advice?
A . It is not necessary if the customer starts with English as the content language. English content is shown as a fallback if there is no content available for a certain UI language.
B. It is necessary. The content must have the same language as the UI.
C. Web Assistant supports English content only.
D. It is not necessary if the customer starts with German as the content language. German content is shown as a fallback if there is no content available for a certain UI language.

Answer: B