IBM API Connect provides a powerful assembly editor that allows developers to create APIs by orchestrating policies. A key feature is the ability to build composite APIs. Using policies like invoke, developers can call multiple backend services to access various data assets. The map policy can then be used to transform and combine the data from these different sources into a single, unified response. This allows API Connect to create a facade that accesses, transforms, and combines data from enterprise applications and systems, exposing it as a new, managed API.

A. This is a high-level description of the entire product category (API Management), not a specific, distinguishing feature of the IBM API Connect capability.

B. This lists the general pillars of any API management platform (security, control, access). It is a correct but less specific description of a feature compared to option D.

C. Building integration flows with a large library of pre-built connectors for SaaS products is a core feature of IBM App Connect, a different product from IBM API Connect.

1. IBM Documentation for API Connect v10.x

"Working with policies in the assembly editor": "You can use the assembly editor to create an assembly of policies that manipulate the request and response of your API operations... For example

you can use an invoke policy to call a backend service

and a map policy to transform the response from that service before it is returned to the calling application." This directly supports the capability to access

transform

and combine data assets.

2. IBM Documentation for API Connect v10.x

"Invoke policy": "The invoke policy is used to call a web service from within an assembly flow... You can configure the invoke policy to call a web service that is exposed by a backend server

or to call another API that is managed by API Connect." This confirms the "access" part of the correct answer.

3. IBM Documentation for API Connect v10.x

"Map policy": "The map policy enables you to transform data between the request and response... by mapping fields from a set of input variables to a set of output variables." This confirms the "transform and combine" part of the correct answer.