George : Have you watched the news?
Lily : No, what happened?
George : Deforestation in our city is increasing day by day and - - - -
Lily : What should we do to prevent?
George : I think we should plant more trees.
Which of the following completes the dialogue?
A) there won’t be natural disasters in the future.
B) there may be serious landslides in the future.
C) we should use rechargeable batteries.
D) the tsunami will cause a big damage.