2 5x+20 x 16 X-4 - Select the correct choice below and, if necessary, fill in th answer box to complete your choice. OA. The solution(s) is/are (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OB. The solution set is {x|x is a real number and x # (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OC. There is no solution.