Final answer:
To promote their new dishwasher line nationally, Hudson's Bay would likely utilize mass advertising methods like TV and online marketing to ensure consistent branding and reach a wide audience.
Step-by-step explanation:
Hudson's Bay, interested in promoting a new line of dishwashers with a multi-flow system, would most likely use mass advertising to reach a nationwide market. In the past, many products were promoted through traveling salesmen or retail outlets, but the complexity of a national brand necessitates a more uniform approach to avoid miscommunication and maintain a high reputation. Modern methods might include television commercials, online marketing, or nationwide retail partnerships, allowing for consistent messaging and branding that secures the company's reputation across the entire market.