A couple of ideas are: All men are created equal. All men have basic human rights given to them by God. The only reason to have a government is to protect these basic human rights, which Jefferson lists as "life, liberty, and the pursuit of happiness."
The sentence which uses correct punctuation is C. In time, of course, all issues get resolved, but not necessarily in the way you would like.
In A, the comma before <em>he was concerned </em>should be a dash. In B, there should be a colon before <em>a flashlight, </em>not a semi colon. In D, there should be a comma before <em>yet, </em>and not a colon.
I would go with the first the 3. Placing the telescope on the tripod. was chosen by the astronomy club