If You Double the Spring Constant of a Harmonic Oscillator $\sqrt{2}$

Multiple Choice

If you double the spring constant of a harmonic oscillator, the oscillation frequency does what?

A) Decreases by a factor of 2 .
B) Decreases by a factor of $\sqrt{2}$
C) Does not change.
D) Increases by a factor of $\sqrt{2}$ .
E) Increases by a factor of 2 .
F) Changes by some other factor (specify) .