what function does the ‘merge’ parameter specify?

In the command "save config fromtftp1.1.7.250abcd.cfgmerge", what function does the ‘merge’ parameter specify?

A.
The config file from the TFTP server will replace the configuration in RAM

B.
The config file from theTFTP server will replace the startup configuration file in Flash

C.
The `merge` parameter is not valid for TFTP files; it is only valid for configuration files stored in Compact Flash

D.
The config file from the TFTP server will be combined with the configuration file in RAM and the combined result will be saved to Flash

E.
The config file from the TFTP server will be combined with the configuration file in RAM and the startup configuration file will remain unchanged

Explanation:

Merges the saved configuration with the current configuration to flash.The frominterfaceoption specifies the
sourceinterface.
Example: The following command merges the current configuration with the configuration in a file (input.txt) onaTFTPserver (IP address 172.16.10.10):
saveconfig fromtftp172.16.10.10 input.txt merge