Answer:
The correct answer is C: Yesterday, the Star Tribune published an article about pigs living in southern France, near the Mediterranean Sea.
Explanation:
Yesterday – it must be capitalized, as it is the first word of the sentence.
Star Tribune – it’s a proper noun, that is, a full name of newspapers, so it must be capitalized.
southern France – southern is a descriptive term we use to denote a direction or a position. It is not a proper name, so it should not be capitalized. However, France is a proper noun and we should write it with a capital "F" because it is the name of a specific country.