B I don't think everyone will go there.
Explanation: This response doesn't directly address the statement about electronic books, making it a less relevant choice.
C You're right. They are better for the environment, too.
Explanation: This response is a non-sequitur and doesn't relate to the topic of pocket money.
D I don't agree. It's better to read real ones.
Explanation: This response disagrees with the statement and offers an alternative preference, making it a suitable reply.
E That's true. They spend it on all kinds of gadgets.
Explanation: This response agrees with the statement and offers a reason or consequence related to future technology and learning.
F I see what you mean, but we'll still need teachers.
Explanation: This response acknowledges the statement and adds a contrasting point about the continued necessity of teachers, implying that electric cars don't replace all aspects of life.