Answer :
The part of speech that has been demonstrated in the word "during" would be
D). Preposition
- "Preposition" is described as the part of speech that is employed to display the association between a noun or pronoun and the other elements of the sentence.
- In the given sentence, 'during' is the preposition that is employed to introduce the phrase "Jefferson's...president" to the previous part of the sentence.
- This helps in displaying the association between the two and makes the sentence more comprehensive.
Thus, option D is the correct answer.
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