3. What can Congress do through its commerce power?
O tax exported goods
O give tax advantages to one state
O force ships to pay certain taxes
O regulate foreign trade

All of the above

Explanation:

The biggest of the Congress' commerce powers is to regulate trade taxes and foreign trade but it can also in theory give tax advantages to states which has previously been done to much controversy.

All taxes are ultimately in the hands of Congress which decides which import and export good will be taxed and if so, how much it will be taxed by the government of the US. It has the power to influence all of these decisions.

describe a little more.