The answer is D, Place of publication.
IN unit 3 excerpt it is a Paradox
Directed panspermia is a speculative hypothesis about the origin of life on Earth. This hypothesis is a very specific sub-division of a broad group of related ideas. “Exogenesis” is a term referring to the general hypothesis that earth life originated somewhere other than Earth, such as another planet.
I believe the correct answer: is it suggests that one
opponent is much smaller than the other.
In this excerpt from the newspaper "A David and
Goliath Battle Rages Over Sunshine Park", the mentioning the David and
Goliath suggest that one of the opponents in much smaller than the other. This
Biblical parallel alludes that even If regarded as the “small opponent”, Chelsea
Spree has an opportunity to win, just as David had.