What is the command to upgrade an NG with Application Intelligence R55 SmartCenter running on SecurePlatform to VPN-1 NGX R65?

What is the command to upgrade an NG with Application Intelligence R55 SmartCenter running on SecurePlatform to VPN-1 NGX R65?

A.
fw install_mgmt

B.
upgrade_mgmt

C.
patch add cd

D.
fwm upgrade_tool