Which footnote is correct?

Which footnote is correct?

1. In the book Dialogue, Mr. Smith said, "Hi, I'm here to take a test."1
2. In the book Dialogue, Mr. Smith said, "Hi, I'm here to take a test".1
3. in the book Dialogue, Mr. Smith said, "Hi, I'm here to take a test 1."
4. In the book Dialogue, Mr. Smith said, "Hi, I'm here to take a test. 1"

Which is correct?

1. Mr. Smith said; "Stop using my name to make quiz questions."
2. Mr. Smith said that he did not like having his name used in every quiz question; because he is a very shy man.
3. Mr. Smith is a shy man; he does not like having his name referenced too often.
4. Mr. Smith is awfully nice: because he waited until the end of the quiz to voice his concern about the frequency of his name.

Which is correct?

1. At the store I bought: silver bullets, a wooden stake, and onions.
2. At the store I bought the following items; silver bullets, a wooden stake, and onions.
3. At the store I bought silver bullets, a wooden stake, and onions.
4. At the store I bought, silver bullets, a wooden stake, and onions.