What is the BEST example of a footnote?

Question

(1 point)
Responses

(Ponsonby, p. 143)

(Ponsonby, p. 143)

2. David Ponsonby, The Anatomy of the Sea (2005)

2. David Ponsonby, The Anatomy of the Sea (2005)

(Ponsonby, 2005, p. 143)

(Ponsonby, 2005, p. 143)

Ponsonby, D. (2005). The Anatomy of the Sea. (p. 143). Chronicle Books.

Answer 1

The best example of a footnote is:

2. David Ponsonby, The Anatomy of the Sea (2005)