An Environmental Activitist Has to Choose a Campaign

An environmental activitist has to choose a campaign.Which approach will work best?

A) Showing the benefits of the trade-off between the economy and the environment;you will spend more but you will have a nicer planet to live in,which is priceless.
B) Demonstrating how the poor will be the most affected by climate change,appealing to people's altruisim.
C) Suggesting that using less electricity will save people money and help the environment.
D) Showing what the world will look like in 300 years if we don't take action to protect the environment.