Atectonic plate is part of the earth's lithosphere and can be best described as

a large, fairly rigid block.

the autor of the text is bringing the point that one achievment of the president john f. kennedy was a success and this caused the next president to use a similar idea. the purposefor the use of the quotation in the text is to support the idea that peace corps was a result of the president's call. in this case, the quotation is presented as part of the writing and does not stand on its own.

answer a.

your answer would be: d) eye contact