You Are Returning from a Call When You Come Across

You are returning from a call when you come across an apartment building with flames coming from several windows on the top story. You see several occupants trapped and hanging out of the windows screaming for help. Which one of the following radio transmissions is most appropriate when advising dispatch of the situation?

A) "Central communications from Unit 118, how do you copy?"
B) "Central communications be advised of a working structure fire on Third Street and Raven with occupants trapped."
C) "Central communication, be advised there is a structure fire with people trapped."
D) "Central communications I need the fire department and additional ambulances for a working structure fire on the north side of town."