Final answer:
The correct property used to link known error articles to a problem within a service management system is B. problem.knowledge.known_error_article.
Step-by-step explanation:
The property used to decide which knowledge base will be used to create known error articles for problems in a service management context (likely within an IT Service Management or ITIL framework) is B. problem.knowledge.known_error_article.
When documenting a problem or known error within a service management system or database, this property would typically point to the related knowledge base article that contains workarounds or solutions for the issue.