It is paraphrasing when you restate an author's idea
Answer:
C, because getting familiar with the audience, or mock audience, leads to you not being nervous to talk.
A tariff refers to a tax that is levied on an imported good and which makes the imported good to be more expensive than similar domestic goods. The disadvantages of tariff include the following:
1. Tariff discourages competition in the market, by favoring domestic goods, this leads to reduction in products' quality.
2. Tariff raises the prices of imported goods which leads to decrease in consumer surplus.