There is a requirement to monitor the HTTPS traffic that is being directed to the Cloudfront setup you have in AWS. Which of the following services can be used for this

Answer options:

A.AWS Shield
B.AWS Cloudfront logs
C.AWS WAF
D.AWS Cloudwatch

Answer – C
The AWS documentation mentions the following
AWS WAF is a web application firewall that lets you monitor the HTTP and HTTPS requests that are forwarded to Amazon CloudFront or an Application Load Balancer. 
For more information on AWS WAF please refer to the below URL:
http://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html