The Normal Mode of a Resonating System Is Sinusoidally Disturbed $f$

Multiple Choice

The normal mode of a resonating system is sinusoidally disturbed at a frequency $f$ . Assume that $\gamma<<f_{0}$ , where $f_{0}$ is the normal mode's natural frequency.
-(b) If $f$ is about $30 f_{0}$ ?

A) Roughly zero
B) Roughly $A_{0} / 30$
C) Roughly $A_{0} / 1.4$
D) Roughly $A_{0}$
E) Roughly $1.4 \mathrm{~A}_{0}$
F) Roughly $30 A_{0}$
G) Other (specify)