What is the purpose of the I/O Module Upgrade Script?

What is the purpose of the I/O Module Upgrade Script?
A . To manage the I/O module change during a Metro to Geo topology upgrade.
B . To install the I/O load balancer module on the Management Server.
C . To configure the GbE I/O modules when installing VPLEX Geo.
D . To automate the installation of I/O modules and configuration of the directors.

Answer: D