Consider the a small university network shown in the figure above comprised of $3$ types of hosts. Suppose that the institutional link has a connection to the Internet that supports $250$ Mbps downstream transmission rate and $200$Mbps upstream transmission rate. Suppose that the Ethernet networks $($B and C$)$ can support a transmission rate of $1$Gbps $($both upstream and downstream$)$ and the WiFi network $($A$)$ can support a transmission rate of $150$Mbps $($both upstream and downstream$).$ Assume that the rest of the Internet $($not shown in the figure$)$ and the backbone connections between Ethernet switch and router have ample capacity, which can support any transmission rate $($both upstream and downstream$).$ Hosts in Networks B and C are connected through Ethernet while Hosts in Network A are connected through WiFi. There are $10$ hosts in Network A$,15$ hosts in Network B and $5$ hosts$/$servers in Network C$.$

Answer the following three questions $(1$ mark for each$)$

$1)$ What is the maximum throughput that any host in this university network can experience when downloading a large file from the Internet?

Select one alternative:

$6\mathrm{.}25$Mbps

$200$Mbps

$250$Mbps