I believe it is Subjunctive.
There is difference in time period between the original novel and radio versions of <em>The War of the Worlds</em>. (D) The novel was set in the late 1800s, while the radio version was set on the day it aired in the 1930s.
<u><em>The War of the Worlds </em></u><u>is a science fiction novel written by H.G. Wells,</u> an English author that lived during the late nineteenth century and the early twentieth century.<u> The novel was published in 1898 </u>and it tells the story of the protagonist and his brother, who are forced to deal with the Martian invasion. <u>The story is set in the late 1800s</u>. Moreover, <u>a radio adaptation of </u><u><em>The War of the Worlds </em></u><u>was directed by Orson Wells in 1938</u>. Although it is based on the novel<u>, the story in the radio version is set on the day it aired</u>.
The correct answer is D. Weed tree that wreaks havoc on the environment is referred to favorably as the "tree-of-heaven."
Explanation:
Irony occurs when the outcome in a situation is not the one expected or words have an opposite meaning to the literal meaning. In the excerpt, there is irony because the three known as the "tree-of-heaven" in China is an invasive and harmful species. This can be seen in "implacable invaders capable of rooting in tiny chinks in subway tunnels" and in "heaving up sidewalks and wreaking havoc in sewers" that shows the power the tree has to invade spaces and destroy structures despite the name suggests the tree is positive. This means there is an incongruence between the expectations about the tree and the reality. Thus, the statement that explains irony is statement D.