The answer is B: if the posted speed is not safe at the time
The main way in which the <span>federal system helps prevent the centralization power is that it reserves a good deal of power for the individual states--meaning that this power "checks" the power of the central (federal) government. </span>
A business plan is usually necessary for an entrepreneur to obtain financing plan, his or her day, manufacture a new product. Therefore, all of the above.
A)They present an alternative view and can later influence Congress to enact legislation or the Supreme Court to reconsider its earlier position
