Answer:
c. It resulted in addiction and conflict.
Step-by-step explanation:
The British empire was the major producer of Opium products to China. Opium was most commonly used by drug addicts to create a sense of Euphoria. This effect tend to caused addiction and decrease people's productivity. As a result, China experienced an economic damage due to the high consumption of Opium.
This caused a conflict between China and the British Government. China asked Great Britain to stopped selling opium in their territory. At that time, the opium sales created a lot of income for the British Government. So, they're not willing to stop selling it.