What is the default storage location of user-level bookmarks in an IOS clientless SSL VPN?

What is the default storage location of user-level bookmarks in an IOS clientless SSL VPN?

A.
disk0:/webvpn/{context name}/

B.
disk1:/webvpn/{context name}/

C.
flash:/webvpn/{context name}/

D.
nvram:/webvpn/{context name}/