Answer :
B class All pilots flying in a Class B airspace area must obtain ATC clearance from the ATC facility with jurisdiction over that area.
Unless otherwise authorised by ATC, all aircraft operating in Class B airspace must have the operating transponder and automatic altitude reporting equipment specified in 14 CFR part 91, section 91.215(a), as well as an operable two-way radio capable of communicating with ATC on appropriate frequencies. Student, sport, and recreational pilots may enter specific Class B airspaces after receiving training and an instructor's endorsement. Even with the endorsement, students are not permitted at certain Class B airports. A 4096-code transponder, an encoding altimeter, and a VOR or TACAN receiver are all required.
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