Option a. It matches a user’s query to many sources of information.
Step-by-step explanation:
Enterprise search software extracts data from various sources to resolve user's query. It is basically needed by businesses. Businesses needs to store, retrieve and track digital information. The various data sources are obtained from information stored in e-mail servers, application databases, intranet sites, websites etc.
Enterprise search system searches data records found within organisation. Thus option A is accurate that it matches user's query to many sources of information is very much accurate.