Consider the two scenarios below:

A circuit$-$switching scenario in which Ncs users, each requiring a bandwidth of $25$ Mbps$,$ must share a link of capacity $100$ Mbps$.$

A packet$-$switching scenario with Nps users sharing a $100$ Mbps link, where each user again requires $25$ Mbps when transmitting, but only needs to transmit $40$ percent of the time.What is the probability that any $4$ users $($of the total $7$ users$)$ are transmitting and the remaining users are not transmitting?

$[$Round your answer to two decimals after leading zeros.$]$

Group of answer choices

$0\mathrm{.}23$

$0\mathrm{.}19$

$0\mathrm{.}23$

None of the above