Consider two stations, named A and B$,$ at a distance of $200$ km from each other. Let the

transmission rate of the communication link be $1$ Mbps$,$ the frame size be $2000$ bits and the

propagation delay be $5$s$/$km$.(20$ points$)($Units must be there in your answer$)[15$ Points$]$

a$)$ What is the propagation delay from station A to station B$?$

b$)$ What is the transmission time for each frame?