In the following conversation, which discussion technique does jennifer most clearly show?

jennifer:
you said earlier that paper dolls are fragile, and so are people.

daniel:
kind of. more like cultures are fragile. they change, adapt, and get molded into something new.

jennifer:
but could that versatility be viewed as a strength?

daniel:
i don't think so. cultures are bendable, like paper, like the book said.
a. making an objective
b. returning to the text
c. asking rhetorical questions
d. challenging assumptions

The correct answer is option D: challenging assumptions.

Jennifer clearly shows the technique of challenging assumptions, as she tries to challenge her interlocutor. She wants to make him think new ideas based on new perspectives that could be obtained from the use of this technique.

The aim of this discussion technique is to create new thinking habits. Thus, it can help to create new solutions on a given topic.  

because each is self-sufficient.  

huck's relationship with food is a prominent theme throughout the novel, and during his time on jackson's island and working his way down river, huck revels in and enjoys his ad hoc dining. in the first chapter, we observe huck is ironically trapped in a "civilized" world, when he would prefer to live freely in nature.