Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system. 3x - y = 4 2x + 3y = 21 Select the correct choice below and, if necessary, fill in any answer boxes within your choice. A. The solution is x= 3 and y = 5. (Type integers or simplified fractions.) OB. There are infinitely many solutions. Using ordered pairs, they can be expressed as {(x,y) | x= (Simplify your answer. Type an expression using y as the variable as needed.) OC. The system is inconsistent. y is any real number).