Answer:
B. After the band performed, a number of people said that their singing was at a professional level.
Explanation:
Since based on the context we don't know how many singers there were in the band, we can't choose a singular pronoun here. The singular pronouns mentioned in the options are <em>her, its, </em>and <em>his or her, </em>meaning that all of those options are incorrect. Because there may be more than one singer in the band, we must use the plural possessive pronoun <em>their </em>to refer to all of the singers in this band.
Why do countries provide financial incentives?
The correct answer is letter A: Financial incentives act as trade barriers.
When countries provide financial incentives, they are promoting their domestic production by making it more efficient and cheaper, moreover, it is a way of protecting the country's industry.
Besides, financial incentives play a crucial role in acting as trade barriers, because it is a way of limiting foreign investment.
The answer to this question is A
