suppose you are downloading a web page consisting of a base HTML page of size B bits and N embedded objects, each size of E bits, using different forms of HTTP. let RTT in seconds denote the round trip time between you host and web server. suppose that transmission bit rate over a TCP connection is R bit/sec. a. persistent HTTP without pipelining. how long does it take to download the web page? b.persistent HTTP with pipelining. how long does it take to download the web page? c. non persistent HTTP. how long does it take to download the web page? d. non persistent HTTP with k parallel connections whereby N/K is an integer. how long does it take to download the web page?