Which is not true of dedicated lines?

Which is not true of dedicated lines?

A.
More secure than using public networks

B.
Connect two locations

C.
Inflexible and expensive

D.
Use packet-switching technology

Explanation:
One of the biggest advantages of dedicated lines is that the
connection is private, meaning that it is not a shared medium. This characteristic
provides more security. Dedicated lines are usually much more expensive than
public-switched technologies as in frame relay, X.25, and SMDS.