Answer:
Class C
Step-by-step explanation:
One must establish two-way radio communications before entering Class C airspace. To establish two-way radio communications with air traffic control you will first give your position, altitude, and your request. Your request should include whether you are landing or transitioning their airspace.
If the controller answered with your call sign or registration number, then you have established two-way radio contact. Only then will you be cleared to enter the class C airspace unless otherwise instructed.