A company is developing software that uses a PostgreSQL database schema. The company needs to configure multiple development environments and databases for the company's developers. On average, each development environment is used for half of the 8-hour workday. Which solution will meet these requirements MOST cost-effectively?

• AConfigure each development environment with its own Amazon Aurora PostgreSQL database
• BConfigure each development environment with its own Amazon RDS for PostgreSQL Single-AZ DB instances
• CConfigure each development environment with its own Amazon Aurora On-Demand PostgreSQL-Compatible database
• DConfigure each development environment with its own Amazon S3 bucket by using Amazon S3 Object Select