A company is developing a serverless application by using AWS Lambda functions.

Assign a public IP address to the DB instance. Modify the security group of the DB instance to allow inbound traffic from the IP address of the Lambda function.

Set up an AWS Direct Connect connection between the Lambda function and the DB instance.

Configure an Amazon CloudFront distribution to create a secure connection between the Lambda function and the DB instance.

Configure the Lambda function to connect to the private subnets in the VPC. Add security group rules to allow traffic to the DB instance from the Lambda function.