A. Complacent he is sure he is fine
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.
Answer:
Both present forbidden love
Explanation:
The famous story of star crossed lovers; Romeo and Juliet is similar to that of Pyramus and Thisbe who suffered the same fate. Both couples died as a result of forbidden love and one believing the other has died.