8 July 1497
On 8 July 1497 Vasco da Gama led a fleet of four ships with a crew of 170 men from Lisbon. The distance traveled in the journey around Africa to India and back was greater than around the equator.
The subject tells whom or what the sentence is about, and the predicate tells what the subject is or does.
Example: The dog ran.
Explanation: The dog is the subject of the sentence, because the sentence is telling something about that dog.
When writing dates in long format, there should be a comma after the day of the week and a comma after the specific date. You should also note that the whole words should be used, especially when you aim for the formal tone of writing. So looking at your choices, you can rule out B, C, and D.
The correct answer would be A. Monday, November 12, 2004.