Your client operates a rapidly expanding e-commerce platform specializing in commercial spare parts for cars, with a strong focus on competitive pricing. Initially targeting the small car sector, the platform is now diversifying its product range to include parts for larger vehicles and electric cars. With 80% of its operations in the B2B market, the client's primary objective is to swiftly and profitably encourage customers to explore and adopt the new products being added. The client is particularly interested in leveraging Google Cloud Platform (GCP) services to achieve this goal. Considering the need for scalability, cost-effectiveness, and the ability to personalize recommendations based on customer behavior and preferences, which GCP service would be most beneficial for this purpose? Choose the best option.