Help asap pleas

Choose the best example of a research paper topic posed as a question.

A. What was the Battle of Gettysburg?
B. How did the Battle of Gettysburg happen?
C. How did the Battle of Gettysburg affect the war?
D. Who fought in the Battle of Gettysburg?

30 points! : ) also! question number two! analyze the connection mlk makes between the emancipation proclamation and the current situation african americans were experiencing. a; martin luther king was speaking about the need to free african americans from slavery, just like abraham lincoln did years ago. b; martin luther king makes the point that 100 years after slaves were freed by the emancipation proclamation, they are not truly free due to continued segregation. c; martin luther king thought life was going very well for african americans, and no further action needed to be taken. he showed extreme gratitude to abraham lincoln. d; martin luther king expressed extreme anger towards abraham lincoln for not ending segregation.

Is the slightly humorous tone of kristof's essay inappropriate for a discussion of deliberately killing wild animals? why or why not?

Which of the following is best written: 1. my favorite day of the year is july 24 my birthday 2. my favorite day, of the year, is july 24 my birthday 3. my favorite day of the year is july 24-my birthday 4. my favorite day of the year is (july 24) my birthday