Which of the responses contains all the statements that are consistent with the Bohr theory of the atom (and no others)? 1. An electron can remain in a particular orbit as long as it continually absorbs radiation of a definite frequency.
2. The lowest energy orbits are those closest to the nucleus.
3. An electron can jump from the K shell (n = 1 major energy level) to the M shell (n = 3 major energy level) by emitting radiation of a definite frequency.

a. 1, 2, and 3
b. 2 only
c. 3 only
d. 1 and 2
e. 2 and 3