The EU regulates taxes on Internet sales and the amount of pollution differently than the U.S. government. U.S. companies doing business in the EU:A. Are required to comply with EU regulations only if their main headquarters are located within the European Union B. Must pay taxes to the EU when conducting all business globally if they wish to do any business in the EU. C. Must comply with EU regulations when doing business in the European Union only D. Are never required to comply with EU regulations as long as they are headquartered in the United States E. Have the option to conduct business under either EU or U.S. regulations

C. Must comply with EU regulations when doing business in the European Union only.

Explanation:

European Union tax and pollution laws are meant to bind only the area in the EU and not other areas. For instance, a Nebraska state law that is not law in other parts of the country only covers Nebraska and so can only be enforced there.

The same logic goes for the EU. Their laws are only applicable if you are in their area of control. This means that U.S. companies doing business in the EU must comply with EU regulations when doing business in the EU only.

Option (A) is correct.

Explanation:

Each of the buyer and seller are small when we are relating it with the whole market. so, there will be no power in the hands of a single decision maker and if a firm wants to change their prices then it will not have any influence on the market price. In a competitive market, there are large number of buyers and sellers, thus, one buyer or seller doesn't have any impact on the market price.