Which answer correctly defines diction as a rhetorical feature?

contrasting two extremes by positioning them together in the text

structuring sentences in a way that highlights an argument

using emotional or striking language to emphasize an argument

highlighting an absurdity or contradiction by stating the opposite meaning

The answer is: Using emotional or striking language to emphasize an argument.

Explanation:

Diction refers to choosing the right words and style of expression that the author wishes to use in a piece of writing and a rhetorical feature refers to what you can use to great effect in you writing. So, having explained these definitions we know that contrasting and positioning two extremes together in a text has nothing to do with what has just bein explained, neither the "structure of senteces" nor "stating an opposite meaning highlighting absurdity" so we have: the use of emotional language (diction) to emphasize and argument (rhetocial feature).

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.

the group received an extra pound of butter for christmas.

the annex was delighted to hear that we'll all be receiving an extra quarter pound of butter for christmas.