Which one of the following is true about Threat Emulation?

Threat Emulation is a software blade that takes minutes to complete (less than 3 minutes). Threat Emulation analyzes files for malicious behavior by running them in a virtual sandbox. Threat Emulation works on MS Office, PDF, executables, and archive files. Threat Emulation does not always deliver a file, but only if no threats are found or if the user chooses to download the original file after seeing a warning message. References: Check Point Security Expert R81 Course, Threat Emulation Administration Guide