The central idea of “A Plea for Global Education” is most closely represented by option:
d Education about world events and diverse cultures is needed on a large scale to fully tackle the problems facing humanity today.
For the best supporting sentence from the text, the correct choice is:
b “Solutions will come when the world becomes educated about global values, the common values of its inhabitants and communities.”
This sentence directly aligns with the central idea of the importance of education in addressing global issues.