Which is not true about point$-$to$-$point circuits?

point$-$to$-$point circuits reduce the amount of cable required and use the circuit more efficiently than multipoint circuits.

point$-$to$-$point circuits are more expensive than multipoint circuits:

point$-$to$-$point circuits are called dedicated circuits.

point$-$to$-$point circuits are used when the computers generate enough traffic to fill the capacity of the communication circuit.

point$-$to$-$point circuits are dedicated to the use of the two computers.