Which excerpt from "Object Lesson, Part 2" would most likely cause reader uncertainty?

Louise Carpenter was gripping a desk, her knuckles white.
The thin boy quivered. "Who, me?"
“If Joey is guilty, it should fit exactly. Does it?"
Then David turned to Ellery. "Where do we stand, Mr. Queen?"

to persuade readers which is answer c

answer: do

the 'italicized phrase' is a noun clause that is used as a direct object.

i think it could possibly be b

“there are three different methods of direction observation with intervention: parrticipant observation structured observation and field experiments . “ hope this