Option C: Crossword Puzzle

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Across
  1. 2. authenticate by someone empowered to witness signatures
  2. 4. a fear of foreigners or strangers
  3. 8. summarize briefly
  4. 9. speech you make to yourself
  5. 10. physics concerned with heat and other forms of energy
  6. 14. a standard or typical example
  7. 15. confidently optimistic and cheerful
Down
  1. 1. a free man who cultivates his own land
  2. 3. A longing for something past,homesickness
  3. 5. lukewarm,unenthusiastic,marked by an absence of interest
  4. 6. extremely steep
  5. 7. stern,unyielding,gloomy,ill-humored
  6. 11. a political system governed by a few people
  7. 12. to make larger,increase
  8. 13. to examine closely,inspect