Which VPN tunneling protocol should you use?

You support computers that run Windows 8. You are designing a remote access server
(RAS).
The firewall accepts incoming TCP connections only to ports 80 and 443.
You want to connect to the RAS server from a laptop.
You need to create a virtual private network (VPN) connection to the RAS server.
Which VPN tunneling protocol should you use?

A.
L2TP

B.
SSTP

C.
PPTP

D.
IPSEC