The Firewall Administrator Is Adding a New Certificate for the Company's

The firewall administrator is adding a new certificate for the company's remote access solution. The solution requires that the uploaded file contain the entire certificate chain for the certificate to load properly. The administrator loads the company certificate and the root CA certificate into the file. The file upload is rejected. Which of the following is required to complete the certificate chain?

A) Certificate revocation list
B) Intermediate authority
C) Recovery agent
D) Root of trust