Expected profit and the real interest rate affect investment decisions

In a graph, a straight line has a negative slope if the line

A) is vertical. B) is horizontal. C) falls from left to right. D) rises from left to right. E) shows a trend.

Which of the following demonstrates the endowment effect?

A) If you received a good as a gift, you are less likely to attach a monetary value to the good. B) Isabella was not willing to part with her "Chris Hemsworth" poster although she was offered $100 for it, a sum greater than what it costs to purchase another such poster. C) Chris Hemsworth commands a premium in the movie industry because he is endowed with dashing looks. D) Whelan inherits a cottage in Cape Cod from his grandfather and is unwilling to sell it for sentimental reasons.