Answer questions (a) to (e) following the instructions: 

(ii) Determination 

(ii) Reasonable and believable 

(ii) in 

The main impact of the internet is that it has revolutionized communication, making it faster and more accessible to people worldwide.

The provided sentence highlights the profound effect of the internet on how people interact globally. By stating that it "revolutionized communication," the sentence implies a fundamental change from previous methods. Specifically, this revolution is characterized by making communication "faster and more accessible."

This impact has reshaped various aspects of modern life. For instance, communication that once took days or hours (via mail or traditional phone lines) can now be instantaneous through emails, instant messaging, and video calls. Furthermore, accessibility has increased as geographical barriers are reduced, allowing people from different parts of the world to connect and share information with unprecedented ease and at a lower cost.