A Company Hosts an Online Shopping Portal in the AWS

Multiple Choice

A company hosts an online shopping portal in the AWS Cloud. The portal provides HTTPS security by using a TLS certificate on an Elastic Load Balancer (ELB) . Recently, the portal suffered an outage because the TLS certificate expired. A SysOps administrator must create a solution to automatically renew certificates to avoid this issue in the future. What is the MOST operationally efficient solution that meets these requirements?

A) Request a public certificate by using AWS Certificate Manager (ACM) . Associate the certificate from ACM with the ELB. Write a scheduled AWS Lambda function to renew the certificate every 18 months.
B) Request a public certificate by using AWS Certificate Manager (ACM) . Associate the certificate from ACM with the ELB. ACM will automatically manage the renewal of the certificate.
C) Register a certificate with a third-party certificate authority (CA) . Import this certificate into AWS Certificate Manager (ACM) . Associate the certificate from ACM with the ELB. ACM will automatically manage the renewal of the certificate.
D) Register a certificate with a third-party certificate authority (CA) . Configure the ELB to import the certificate directly from the CA. Set the certificate refresh cycle on the ELB to refresh when the certificate is within 3 months of the expiration date.