Jim Simmons has $39000 invested in stock A and stock B. Stock A currently sells for $30 a share and stock B sells for $60 a share. If stock B triples in value and stock A goes up 50%, his stock will be worth $103 comma 500. How many shares of each stock does he own?

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.