Correct Answer - C.
AWS Service Catalog allows IT organizations to create a portfolio of products that end-users can use to deploy AWS resources as defined in the portfolio.
For this, AWS Service Catalog uses AWS IAM & AWS CloudFormation.
Option A is incorrect as AWS Service Catalog uses AWS IAM & AWS CloudFormation & not AWS Config to create a portfolio.
Option B is incorrect as AWS IAM is used in combination with AWS CloudFormation by AWS Service Catalog.
Option D is incorrect as AWS Service Catalog uses neither AWS Config nor AWS Organizations.
