What system allows a user to provide one ID and password per work session and then is automatically logged-on to all the required applications?

What system allows a user to provide one ID and password per work session and then is automatically logged-on to all the required applications?

A.
Tickets

B.
SSO

C.
Challenge Response

D.
Token-based authentication

E.
Biometrics

Explanation:
Single Sign-On (SSO) overcomes the problems of having to log on multiple times to access different network resources.