The correct answer is letter (A)
Explanation: This is the Law of Supply and Demand, is the relation of the sellers and the buyers that can affect the price, if a product has a good selling it may the price decrease, if the product has a low selling make the price increase.
Law of Supply and Demand is responsible for balance of a economy, it can make increase or decrease prices in various ways.
Poverty in Nigeria can be caused by the political instability of the country. because the government is corrupt and wastes money on rubbish while the people suffer and they are political unstable
The correct answer is semantic memory.
Semantic Memory refers to a part of long haul memory that processes thoughts and ideas that are not drawn from individual experience. Semantic memory incorporates things that are regular information, for example, the names of colors, the sounds of letters, the capitals of nations and other fundamental facts obtained over a lifetime.