The Subject is Business Analytics & intelligence:

Text analytics are important for an organizations data mining portfolio because:

Group of answer choices

1: Blogs and social media are a lot more fun than traditional corporate databases, so we can enjoy the insights we get from mining that content.

2: A and C above

3: Only around 20% of overall data is structured and thus usable in traditional reporting and business intelligence.

4: Text analytics can be used to develop a better understanding of the likes, dislikes and motivations of the customer.