Aaron Alexis, the former Navy reservist who went on a shooting rampage in September 2013 and killed 12 people at the Washington Navy Yard in Washington D. C., had a history of mental instability, but he was carrying a valid security clearance. How would you suggest managers make decisions for issuing or revoking security clearances to prevent this kind of catastrophe?

Trade will take place: a. if the maximum that a consumer is willing and able to pay is less than the minimum price the producer is willing and able to accept for a good. b. if the maximum that a consumer is willing and able to pay is greater than the minimum price the producer is willing and able to accept for a good. c. only if the maximum that a consumer is willing and able to pay is equal to the minimum price the producer is willing and able to accept for a good. d. none of the above.