Why Is Setting Up a Marketing Information System Considered Valuable

Why is setting up a marketing information system considered valuable to marketing managers?

A) It helps in getting a continual flow of information whenever needed.
B) It focuses more on primary data than secondary data.
C) It provides generalized information and not problem-specific data.
D) It concentrates only on numerical data and supports fast analysis.
E) It serves as a source of information for small companies that can't afford marketing research.