Doyle builds suspense in “the adventure of the engineer's thumb” by
a. using conversation to reveal the story.
b. slowly and deliberately unfolding the plot.
c. abruptly changing the setting of the story.
d. creating characters with opposing personalities.

“the adventure of the engineer's thumb” is actually a short story that was written by  arthur conan doyle. this is only one of the twelve stories from the " the adventures of sherlock holmes" collection. and based on this story, how the author creates suspense is by abruptly changing the setting of the story. the answer is option c.

Abetter tresfgyts

So far i know that you cant