Applying main ideas

“think globally, act locally.”

read the quote and then answer the question below.

what does this quote mean?
a.
people should become actively involved in saving the environment for the good of all humankind.
b.
learning more about other cultures is important, since there are so many immigrants in america today.
c.
any change or action in america will affect the whole world, so it is most important to focus only on what happens in america.
d.
if everyone did what they could in their own communities to improve the lives of others and their nation, the whole world would experience the benefits.