The correct answer is A. The radio adaptation's tone is more urgent than the novel's tone.
Step-by-step explanation:
The tone of a text refers to the attitude of the speaker, narrator or author while describing situations, events, subjects, etc. which can be identified based on the selection of words, phrases or language that reveal the feelings, thoughts, and ideas of the speaker while describing something.
In the case of the two versions of The War of the Worlds, the radio adaptation has a more urgent tone this can be seen in the use of language for example in "several explosions of incandescent gas" or "moving towards the earth with enormous velocity" that show the situation is urgent and an emergency in comparison to the language used in the original text "a line of flame high in the atmosphere" or "It seemed to him that it fell to earth" that just describes the way the object is falling to the Earth but without any urgency or feeling.
Thus, the statement that describes the difference between the two versions is "the radio adaptation's tone is more urgent than the novel's tone".