Hey! The answer to this question is C. Since the Goliath was a giant and David was a small little shepherd boy, the people judged David by his size rather than his wits.
I believe the answer to your question is D
The main difference of simile and analogy is simile used comparison to make the description more emphatic and vivid ,( example : Sneaky as a snake, strong as a tank)
We can't find this kind of language on the paragraph above.
So, that paragraph above is more aptly described as an : analogy
hope this helps