Can someone tell me how to answer these questions!

Which of the following developments during the 1780s produced the strongest calls for a new national constitution and government? a.disrespect and abuse toward americans by foreign powersb.political disputes between tories and whigsc.economic chaos in the nationod.failure of states to cooperate with congress

In which of the following situations must you cross at least two different streams of opposing traffic? a. changing lanes b. turning left c. turning right

What is the tax base for the sales tax ?