Answer:
D) gave.
Explanation:
The form of narration of the given event is such that the tenses are in the past. The use of "was", "urged" etc confirms that the sentences are framed in the past tense.
So, for the blank in number (16), the best answer to complete the sentence will be "gave". This is in line with the tense form of the previous sentences.
Thus, the correct answer is option D.