Which group discussion technique is best illustrated by the following statement?

of course the author is going to support a liberal immigration he's trying to immigrate to america. i just think this makes him too biased to consider the issue fairly.
a. restating an idea to ensure understanding
b. disagreeing respectfully
c. challenging established ideas
d. holding group members accountable

C. challenging established ideas

Explanation:

The established idea the speaker is challenging is the issue concerned with a liberal immigration policy. This idea, in the speaker's view,  is being supported by an author who is trying to emmigrate himself to America. Therefore ,there is no point in discussing about a policy to allow  free immigration if this idea will be supported by an author directly affected by the situation. The speaker puts it in these words: "..to consider the issue fairly."

your multimedia presentation should meet the following specifications: • it should be a minimum of four written paragraphs in length, which includes an introduction that previews the topic, incorporates facts, definitions, quotations, or other important information. • it should address all of the questions assigned in the webquest. • it should use vocabulary specific to the topic. • it should include a works cited page to document all sources. • it should reflect mastery of the basic rules of grammar, punctuation, and spelling. • it should use formatting, multimedia, and graphics to reinforce and extend the content. • it should include three multimedia elements and should use at least two of the following types of multimedia: 1. photographs 2. video clips 3. audio clips 4. maps 5. charts 6. graphs 7. works of art (such as original songs, sculptures, painting, performances) • it should be presented in one of the following formats: 1. word document 2. powerpoint presentation 3. prezi presentation can i have points idk the answer

whats the underlined word