To answer this question, you need to understand the key characteristics of Web 2.0. Let's go through each option to understand why it is correct or incorrect:
Option A) Better Design - This option is incorrect because Web 2.0 is not specifically characterized by better design. While design improvements may have been a part of the transition to Web 2.0, it is not the key characteristic.
Option B) Better Sound - This option is incorrect because Web 2.0 is not specifically characterized by better sound. Web 2.0 primarily refers to the shift in internet usage and technology, and is not directly related to audio improvements.
Option C) User-generated content - This option is correct because user-generated content is one of the key characteristics of Web 2.0. This refers to the ability for users to create, publish, and share content on the internet, giving rise to platforms such as social media, blogs, and wikis.
Option D) Sharing & openness - This option is correct because sharing and openness are also key characteristics of Web 2.0. Web 2.0 platforms encourage collaboration, sharing of information, and open access to content.
The correct answer is C, D. These options are correct because user-generated content and sharing/openness are key characteristics of Web 2.0.