The Annapolis Convention was called to address (Points : 1)

the lack of authority to raise armies.
the lack of authority to impose uniform commercial regulations among the states.
the inability of the Continental Congress to pay revolutionary war veterans.
the possibility of holding a convention in secret.

6 answers

the lack of authority to impose uniform commercial regulations among the states
No.
If your text materials aren't clear on this:

http://en.wikipedia.org/wiki/Annapolis_Convention_(1786)
the possibility of holding a convention in secret.
No again. The Articles of Confederation did not give the Congress the authority to levy taxes. One (of several) consequences was that bounties promised Revolutionary War soldiers could not be paid except in land, not money. This question is a little overly simplistic, but the major issue at stake in revising the Articles was the issue of taxation.
Actually, your first answer about interstate commerce was the most correct answer as regards the Annapolis Convention. As the article I posted to you points out, the impact of the convention may or may not have had a lot of impact, but the Constitution drafted the next year did contain the commerce clause. Still, the major issue at the time was not only commerce and trade, but taxation.