I fly out of Van Nuys as a student pilot and it is a Class D underlying a Class C...easy enough...however I get conflicting answers on who to contact for transition through the Class C. Some say "oohhhhjust contact Socal and some say Burbank..... The Federal Aviation Regulation Part 91 Section 130c states something to the effect that i must contact the ATC facility that has jurisdiction over the class C........well Burbank has the jurisdiction but doesn't Socal App. have it too....I mean if i depart to the west of Van Nuys the VNY tower tells me to contact Socal not Burbank...The other problem is i have yet to enter Burbank's Class C to the East...I assume thats when i contact Burbank because it is East of VNY...One more Q I have is if I already have Flight Following before entering into the Class C do i get handed off or am I already cleared to enter Class C since i have established 2 way Comms with Socal...I think what i have done is just confusing the hell out of myself for no good reason. blahhhhh!!!!!!!!!!!