The market price for XYZ Corporation stock is currently $50 per share with a quantity of 100,000 shares traded per day. Which of the following events would lead to a new equilibrium price of $75 per share and a new equilibrium quantity of 125,000 shares traded per day?

a. an announcement that XYZ Corporation suffered record losses last quarter

b. an announcement that XYZ Corporation owes hundreds of millions of dollars in back taxes

c. an announcement that XYZ Corporation won a patent lawsuit against its main competitior.

d. all of the above e. none of the above