Final answer:
The activity described by Constant Credit is known as promotional marketing, which is a tactic to increase brand visibility and drive traffic to their services.
Step-by-step explanation:
Constant Credit's initiative to send representatives to a major league baseball playoff game to manage a small booth and give fans a gift card with the company's logo and website link is promotional marketing. This type of marketing is aimed at increasing brand awareness and driving potential customers to explore the company's products or services. The given scenario involving giving away branded gift cards during a major event is a classic marketing tactic used to expand outreach and engage with a broad audience.