Explanation: The tone of a text or sentence is the author's or speaker's attitude towards the audience, the subject or even the characters of the text. There are many different kinds of tones, like: positive, negative, objective, sad, angry, etc. In the given excerpt from The Dark Game: True Spy Stories from Invisible Ink to CIA Moles, the word "crisis" gives the excerpt an intense and concerning tone, if this word were replaced with "event" the tone would be less intense, so the correct answer is option D.
The passage above is an excerpt from this. If the underlined word, which is "crisis", be substituted with the word "event" instead, this would create a tone of less intense. Answer is opt
