Answer: shouldn't
Explanation:
Since he felt sick after eating. "I shouldn't have eaten so much." is the correct sentence.
Based on the given paragraph above, the answer for this would be option A. After reading the paragraph about China, the reader can most likely conclude that China is a country <span>that is defined by strict rules. Hope this is the answer that you are looking for. </span>
B) enhancing and manipulating audio recordings. Hope this helps :)