Which two methods can be used with the NSX Edge Service Gateway?

A vSphere administrator wants to setup an NSX Edge Service Gateway to provide traveling
employees secure access to company servers located in specific network segments within the
corporate Data Center. The remote access solution must provide a method to authenticate the
users.
Which two methods can be used with the NSX Edge Service Gateway? (Choose two.)

A.
TACACS+

B.
MS-CHAP

C.
RSA Secure ID

D.
Active Directory