Final answer:
The system allows for importing data from sources for a period of c) 30 days.
Step-by-step explanation:
The system's data importing feature permits sourcing information from external channels within a timeframe of 30 days. This functionality ensures that users can pull in recent and relevant data, maintaining the information's currency and relevance. Within this 30-day window, the system facilitates the seamless integration of diverse data sets, enabling users to access and analyze up-to-date information efficiently. This time span strikes a balance between capturing recent data and managing the system's performance by not overwhelming it with an excessive amount of historical information. It allows for a reasonable timeline to gather, process, and utilize data effectively for various purposes, catering to the needs of users without compromising on data quality and system efficiency.
The correct answer is c) 30 days.