Answer:
C. display
Explanation:
Display advertising is an advertising process where a product or services are displayed in form of images, videos, and published on the social sites so that the people could aware of that particular product or services
Therefore as per the given situation, in the newspaper advertising, the display advertising involved the copy, photos, headlines etc
Hence, the correct option is C.
Answer:
Efficiency requires that one lighthouse is built since the willingness to pay of all the residents together is larger than the cost of providing the lighthouse
Explanation:
Since the lighthouse is a public good, according to the coase theorem, if the combined willingness to pay for the lighthouse of all of the people living on the islands is higher than the cost of the lighthouse, then a lighthouse should be built.
The total willingness to pay is:

The population willingness to pay is higher than the cost of building one lighthouse ($2000) but lower than the cost of building two lighthouses ($4000). Therefore, efficiency requires that one lighthouse is built since the willingness to pay of all the residents together is larger than the cost of providing the lighthouse.
A company that is based on a direct flow of authority from the top executive to subordinates is known as a Line of Organization. In this type of organization, the decision and authority are structured<span> from the highest position down directly to its subordinates.</span>
Answer:
D. Currency exchange risk
Explanation:
If you must deal with only domestic long term investments, then you should not worry about the currency exchange risk. The currency exchange risk is extremely relevant and important when you are dealing with investments in foreign countries. The currency exchange risk refers to risks associated with the US dollar depreciating or appreciating against other foreign currencies.