Consider the following Statements:

  1. Radon is the heaviest gas.
  2. Astatine is the rarest element on the earth.
  3. Graphite which is a non-metal is also an electrical conductor.

Which among the above Statement(s) is/are correct?

[A] Only 2
[B] 1 and 2
[C] 2 and 3
[D] 1, 2 and 3
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