Network effect $($also called network externality or Metcalfe$$s Law$)$ indicates that the value $($V$)$ of a network is related to the number of nodes $($n$),$ which can be expressed mathematically as

Group of answer choices

V $=($n $1)/2$

V $=$n$($n $1)/2$

V $=1/2$n

V $=/2$n