Which of the following pairs of events are mutually exclu- sive? Justify your response. a. (The Dow Jones Industrial Average increases on Monday.), (A large New York bank decreases its prime interest rate on Monday.} b. (The next sale by a PC retailer is a notebook com- puter.), (The next sale by a PC retailer is a desktop computer.} . c. (You reinvest all your dividend income in a limited partnership.}. [You reinvest all your dividend income in a money market fund.}