Suppose you are holding the market portfolio shown in the table, , and have invested $15,000 in Stock C. a. How much have you invested in Stock A? b. How many shares of Stock B do you hold? c. If the price of Stock C suddenly drops to $3 per share, what trade in Stock C do you need to execute to maintain your portfolio at the same proportions as the market portfolio? a. How much have you invested in Stock A? The amount that you have invested in Stock A is $. (Round to the nearest dollar.) Data table (Click on the following icon in order to copy its contents into a spreadsheet.)