Final answer:
Marketing represents an institution or mechanism that brings buyers and sellers into contact.
Step-by-step explanation:
An institution or mechanism that brings buyers and sellers into contact is Marketing. Marketing is the process of promoting, selling, and distributing products or services to potential buyers. It involves various activities such as advertising, brand development, market research, and sales.
For example, a company may use marketing strategies such as social media campaigns, television commercials, or email marketing to connect with potential customers and persuade them to purchase their products or services.
Therefore, the correct answer is Option A) Marketing.