Answer:
Option C is the right answer
Explanation:
The shark fin soup is one of the favorite foods of people and foreigners and when due to the presence of mercury in shark soup the sale of one of the favorite Thai food decline. There are various reasons for the plummeted sales, such as; social factors, people are willing to use and recommend those products only which are healthy. Similarly, political and legal enforcement led to a devastating decline of the overall demand for shark soup.