Respuesta :
The answer is D, we should carefully consider what to say when questioned by the press
Answer: D) We should carefully consider what to say when questioned by the press.
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. From the given options, the revision that would change the tone of the given sentence to a more serious one, is the corresponding to option D, because of the formal and serious choice of words.