Which of the following best defines the underlined word in the following sentence:

“an active citizen is a productive member of society.”
a.
making significant contributions
b.
self-absorbed or arrogant
c.
concerned
d.
makes many products

I believe that the correct answer is A. Making Significant Contributions. The sentence is telling you that an active citizen makes them a productive member of society which tells me that they would most likely make some contributions to their town. Hope I helped 

A:making significant contributions

Explanation:

Mountains and seas encouraged them to develop independently

Explanation: