Final answer:
To analyze poor faucet sales, the Sales Management System can provide sales data, Inventory Management System for stock levels, Customer Relationship Management System for customer insights, and Supply Chain Management System for supplier-related issues.
Step-by-step explanation:
To investigate the poor sales of a specific faucet brand at the retail home improvement chain DIY Discount, the information system best suited for analysis would depend on the type of data needed. Option (a) a Sales Management System could be utilized to retrieve sales data and analyze product performance by reviewing sales trends, patterns, and historical comparison. Option (b), the Inventory Management System, would help check stock levels and product turnover rates, indicating whether poor sales could be due to overstocking or understocking issues. Option (c), a Customer Relationship Management System, can gather customer feedback and preferences to understand if there are any customer satisfaction or preference trends that might influence sales. Option (d), the Supply Chain Management System, examines supplier data for possible issues with deliveries or the quality of the faucets that could affect sales.