Final Answer:
The medium that suffers from issues such as difficulty in assessing taxes, unfair competition, import duties, and privacy is the Internet. so the correct option is e) the Internet.
Step-by-step explanation:
Difficulty in Assessing Taxes: The Internet faces challenges in tax assessment due to the global nature of online transactions, making it difficult for authorities to track and tax them effectively.
Unfair Competition: The Internet allows for a vast marketplace where competition can be intense, and distinguishing between fair and unfair practices becomes challenging, impacting fair competition.
Import Duties: E-commerce on the Internet often involves cross-border transactions, leading to complications in applying and enforcing import duties consistently.
Privacy Concerns: The Internet is susceptible to privacy issues as user data can be vulnerable to breaches, raising concerns about how personal information is handled and protected. so the correct option is e) the Internet.