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Which of the following statement(s) is//...

Which of the following statement(s) `is//are` consistent with the Bohr theory of the atom (and no other)?
(1) An electron can remain in a particular orbit as long as it continuously absorbs radioation of a definite frequency.
(2) The lowest energy orbits are those closest to the nucleus.
(3) All electrons can jump from the K shell to the M shell by emitting radiation of a definite frequency.

A

1,2,3,

B

2 only

C

3 only

D

1,2

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