API-led connectivity is a method of connecting data to applications through reusable and purposeful APIs. MuleSoft Accelerator for Salesforce B2C Commerce Cloud is a solution that uses API-led connectivity to integrate B2C Commerce with other systems such as PIM, ERP, or Service Cloud. The benefits of API-led connectivity while implementing the MuleSoft accelerator for B2C Commerce are:

It enables self-service and an increase in productivity through reusable microservices and APIs. API-led connectivity allows developers to create modular and reusable microservices and APIs that can be easily discovered, accessed, and composed by other developers or business users. This reduces duplication of effort, increases agility, and accelerates time to market.

It enforces a distributed approach and allows for the creation of Experience APIs, Data APIs, and System APIs. API-led connectivity follows a distributed approach that decouples data sources from data consumers, enabling greater scalability, flexibility, and security. It also allows for the creation of three layers of APIs: Experience APIs that tailor data to specific channels or devices, Data APIs that orchestrate data from multiple sources, and System APIs that connect to core systems of record.

Option B is incorrect because API-led connectivity does not let the business quickly integrate different systems without involving IT. It requires IT to design, build, and manage the APIs that enable integration. Option C is incorrect because API-led connectivity does not offer a template-driven approach for development. It offers a methodology and a framework for developing APIs based on best practices. References:

https://www.mulesoft.com/resources/api/what-is-api-led-connectivity

https://www.mulesoft.com/exchange/org.mule.examples/mulesoft-accelerator-for-salesforce-b2c-commerce-cloud/