Read the text and answer the question.
The Internet has both advantages and disadvantages. On one hand, it provides easy access to information. On the other hand, it can be addictive. Some people spend hours on social media without realizing it. This can affect their schoolwork and relationships.
What is the main idea of the text?
A)The Internet is only useful for schoolwork.
B)The Internet has both positive and negative effects.
C)Social media is the only problem with the Internet.
D)People should never use the Internet.