1. The above case study deals with Twitter. After Facebook and Instagram, Twitter is the third most famous global Online Social Network (OSN). It has a basic data model and a straightforward data access API in contrast to other OSNs. (a) Identify who are Twitter's biggest competitors? [5 marks] (b) What's the difference between Twitter and the rest of the social media platforms? Support your answer with relevant examples. [20 marks] 2. Twitter is a fantastic marketing tool for a number of reasons. Explain how Twitter can be used at an international level as a marketing tool to create brand awareness. [25 marks] 3. It's important to be aware to the challenges of Twitter for business. As it aims to grow its brand internationally, what are the marketing challenges that Twitter faces? Discuss. [25 marks] 4. At international market, marketers divided their customer by proper segmenting and targeting. Discuss FIVE ( 5) ways of driving sales with smarter segmentation and targeting on Twitter. [25 marks]