Why is the answer choice (d) and not choice (a)
btw this is from the kaplan practice new sat book

The tone of a story is the author's attitude toward the subject. provide two examples that support the conclusion that the tone of this story is ironic.

How does loma cervantes celebrate her culture in “freeway 280”? ?

Type the correct answer in the box. spell all words correctly. certain species of insects introduced accidentally in a forest are destroying all the douglas fir trees in that forest. the wood of these trees is extensively used for construction. in order to control the damage caused by these insects, the forestry department decided to introduce the moth caterpillar in the forest. these caterpillars are natural predators of the insects. which method did the forestry department implement to control the invasive species? the forestry department implemented a(n) control method.