Which of the following is TRUE about the new mechanism of producing steam？A．It is similar

Which of the following is TRUE about the new mechanism of producing steam？

A．It is similar to bringing down the boiling point of water.

B．Steam generators running solely on water and sunlight are under research now.

C．It employs the use of nanoparticles to focus sunlight more efficiently.

D．The research is widely known in the academic circle but little known among the public.

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