If you are driving an oscillatory system at a certain frequency, but the amplitude is much smaller than it could be, you can be certain that

1. the driving frequency is too low.
2. the driving frequency is too high.
3. the driving frequency is not matched to the natural frequency of the oscillatory system.

3. The driving frequency is not matched to the natural frequency of the oscillatory system.

Explanation:

It is the condition of resonance when the one body that oscillates with a maximum amplitude when the frequency of the applied force is equal to the natural frequency of the body.Every body has its own natural frequency.Here the driving force may be more or less but we are sure that it is not equal to the natural frequency of oscillatory system. Hence the force is not in resonance with the oscillatory system.

Pewnej nocy zakradł się pod pobliski dwór i, gdy nikogo nie było w kredensie, sięgnął po wiszące na ścianie skrzypki. zrobił to zbyt nieostrożnie i zbudził lokaja, który oskarżył janka o próbę kradzieży. sąd, nie chcąc posłać go do więzienia, kazał stójce stachowi zbić go rózgą. chłopak, zbity bardzo mocno, zmarł trzeciego dnia.

Edit the post so i can see the letters for each answer, and increase the points required so i'd be able to answer it.