Diagnosing a Failing Customer Support Chatbot

A company deploys two AI assistants to answer questions about its newest software version, which was released yesterday.

• Assistant A responds: 'I'm sorry, but my knowledge base was last updated several months ago, and I do not have information on the most recent software release.'
• Assistant B responds: 'The new software version includes features X, Y, and Z. You can find the full release notes in our official documentation.'

Which of the following best explains why Assistant B was able to provide a helpful, up-to-date answer while Assistant A could not?

A company implements an AI-powered chatbot to help employees find information in its extensive, frequently updated internal knowledge base. Users report that while the chatbot's language is fluent, its answers are often irrelevant or based on outdated information, even for simple queries. Assuming the core language model is functioning correctly, what is the most likely component of the system to investigate first to resolve this issue?