IELTS p12

2. Introduction A explains the title of the table because the table explains how many time spent on internet by age group.
The first sentence of introduction B couldn't explain the table. We can't know how much people like the internet. The table didn't show people's number.
4. Introduction A is better. because The sentence is correct and shows whole contents.
Introduction B is very detail. but we can't know how much people like the internet depending on their age.

2. Introduction A explains the table's title, as it provides information about the time spent on the internet by age group. However, the first sentence in Introduction B couldn't explain the table. It does not show how much people like the internet and the table does not display number of people involved. 

4. Introduction A is better because it provides a correct and concise overview o the entire content. Introduction B, while detailed, does not show how much people likes the internet depending on their ages.