Final answer:
Car dealership, marketing research firm, and advertisement agency are businesses directly involved in marketing.
Step-by-step explanation:
The businesses directly involved in marketing are:
- Car dealership: Car dealerships engage in marketing activities to promote and sell their cars to customers.
- Marketing research firm: Marketing research firms conduct research to gather information about consumer preferences and help businesses develop effective marketing strategies.
- Advertisement agency: Advertisement agencies create and implement advertising campaigns to promote products or services for businesses.
These businesses play a crucial role in reaching out to customers, understanding market trends, and promoting products or services through various marketing channels.