In Silicon Valley, a number of computer firms were found to be contaminating underground water supplies with toxic chemicals stored in leaking underground containers. A water quality control agency ordered the companies to take immediate corrective action and contribute to a monetary pool for the testing and cleanup of the underground contamination. Suppose that the required monetary pool (in millions of dollars) is given by the following function, where x is the percentage (expressed as a decimal fraction) of the total contaminant removed. Complete parts (A) through (E). P(x)= 3x 1-x (A) Where is P(x) increasing? Decreasing? Select the correct choice below and fill in the answer box(es) to complete your choice. (Type your answer in interval notation. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) OA P(x) is increasing on and decreasing on OB. P(x) is increasing on OC. P(x) is decreasing on (B) Where is the graph of P concave upward? Downward? Select the correct choice below and fill in the answer box(es) to complete your choice. (Type your answer in interval notation. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) OA. P(x) is concave upward on and concave downward on OB. P(x) is concave upward on OC. P(x) is concave downward on (C) Find any horizontal and vertical asymptote. Find the vertical asymptote(s), if any. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A The vertical asymptote(s) is (are) x=