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Question 6 1 pts Which of the following would decrease the demand curve for red whiteboard pens? O a. Consumers realize red pens stand out more on a white board and are better for writing. O b. The price of blue pens (just as good as red pens) decreases. O c. The price of blue pens increases. O d. The price of white boards (always used in tandem with pens) decreases. O e. Both (c) and (d) are true. D Question 7 1 pts Which of the following would increase the supply curve for red whiteboard pens? O a. The price of plastic increases. b. The wages for workers making pens increases. c. New technology is discovered improving the efficiency of the pen production process. O d. A new tax is imposed on the pen industry O e. None of the above. D Question 8 1 pts Consider the mark