Which of the following devices is associated with the reception of radio signals?

What are the "following" devices??

I think they're a list of choices that you have but aren't sharing.

A few devices associated with the reception of various types of

radio signals include the resonant tank, the local oscillator, the

mixer, the detector, the coherer, the discriminator, the parabolic

reflector, the lecher wires, the audio transducer, the demultiplexer,

and ... my personal guess ... the 'antenna' or 'aerial'.