Before taking this class, a student visits the "rate my professors" website to read comments about the professor. the student should:

a) be confident that these responses are based on a representative sample.
b)be cautious, as these responses involve a non-representative sample.
c)be confident that these responses are completely unbiased.
d)conclude that these responses are completely useless.

Can someone read this article and tell me the 1) key ideas and 2) one key quote (copy and paste the link the article is not to long at all)from

What was the focus of debate about the war at the second

Janette goes into an electronics superstore to buy a new computer. the salesperson works with her to find the right model, and she agrees to buy a new computer for $500 and a floor-model 18-inch monitor for $100. just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase can't be sold for < $125. she agrees to the extra $25 even though they had initially agreed on the $100 selling price. janette has fallen for the technique of gaining compliance.