What is the main difference between negative and positive feedback?
a.
positive feedback leads to system instability, while negative feedback leads to system stability.
b.
positive feedback is caused by human impact, while negative feedback occurs naturally.
c.
negative feedback ultimately leads to an increase in the first variable, while positive feedback ultimately leads to a decrease in the first variable.
d.
positive feedback occurs at a much faster rate than negative feedback.

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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.