A: To configure Certificates for use in Azure Websites Applications you need to upload a public Certificate.
C: Over time, multiple versions of TLS have been released to mitigate different vulnerabilities. TLS 1.2 is the most current version available for apps running on
Azure App Service.
Incorrect Answers:
B: We need support the http url as well.
Note:

References:
https://docs.microsoft.com/en-us/azure/app-service/app-service-web-configure-tls-mutual-auth
https://azure.microsoft.com/en-us/updates/app-service-and-functions-hosted-apps-can-now-update-tls-versions/