The statement in option A is true. The object can be in a state of motion or rest which can be described using its speed. State of rest is just a state of motion with speed zero.
In option $B$, it is common experience that many a time application of force does not result in a change in the state of motion. For example, a heavy box may not move at all even if you apply the maximum force that you can exert.
The force applied on the spring fixed to the seat of the bicycle is an example of effect of force. The force changes the shape of the object $($spring$).$
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