Why does Cisco recommend using Tftpd32 version 3.0 or later when upgrading wireless LAN controller software to release 4.1 or later?

Why does Cisco recommend using Tftpd32 version 3.0 or later when upgrading wireless LAN
controller software to release 4.1 or later?

A.
Tftpd32 is a component ofCiscoWorks LMS

B.
Tftpd32 supports TFTP file transfers larger than 32 MB

C.
Tftpd32 is Cisco Compatible Extensions version 4 compliant

D.
Tftpd32 supportsEoIP tunneling which is required for remote Cisco WLC upgrades