4) (25 points) Suppose you are downloading a web page consisting of a base HTML page of size B bits and N embedded objects, each of size E bits, using different forms of HTTP. Let RTT (in seconds) denote the round trip time between your host and the web server. Suppose that the transmission bit rate over a TCP connection is R bit/sec. a) Suppose that persistent HTTP without pipelining is used. How long does it take to download the web page