$1.$ Suppose within your Web browser you click on a link to obtain a Web page. Further suppose that the Web page $($HTML file$)$ references eight small objects on the same server. Let RTT denote the round$-$trip time between the local host and the server containing the object. Assume the base page is a file of size B$,$ the objects are of size Oi$,$ and that the network bandwidth between the client and server is abstracted as a link of bandwidth R bps$.$ How much time elapses from when the client clicks on the link until the client receives the full page, under the following assumptions:

a$)$ Non$-$persistent HTTP with no parallel TCP connections?

b$)$ Non$-$persistent HTTP with the browser configured for $6$ parallel connections?

c$)$ Persistent HTTP without pipelining?

d$)$ Persistent with pipelining?