Read the excerpt from "The Adventure of the Mysterious Picture." "T]here is a secret about one of my rooms on which I feel disposed to try an experiment. So, gentlemen, none of
you shall know who has the haunted chamber, until circumstances reveal it. I will not even know it myself, but
will leave it to chance and the allotment of the housekeeper. At the same time, if it will be any satisfaction to you,
I will observe, for the honor of my paternal mansion, that ? there's scarcely a chamber in it but is well worthy of
being haunted."
What technique does Iving use to build suspense in the excerpt?
O The pace of the story quickens.
O The word choice darkens the tone.
O Odd characters are introduced.
O Setting details are intentionally omitted.

Setting details are intentionally omitted.

Explanation:

According to the excerpt from "The Adventure of the Mysterious Picture", the narrator talks about conducting an experiment with some subjects and not disclosing to them the location of a haunted chamber which none of the subjects would know, not even him would know.

Therefore, the technique that Iving use to build suspense in the excerpt is intentionally omitting setting details.

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.