I think its c but not sure
<em><u>Answer:</u></em>
<em><u>Earth summit was a major United Nation Conference held at Rio De Jainero between 3 to 14 in June 1992. During the program, 172 governments participated and the issues discussed during the conference majorly centered around environmental issues.
</u></em>
<em><u></u></em>
<em><u>Explanation:</u></em>
Answer:
if you could add a paragraph or evidence I would gladly answer
Explanation: