Use the echelon method to solve the given system of two equations in two unknowns. Check your answers.X/3 + y = 5/3x/7 + y =-3/7Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A. The solution of the system is(Simplify your answer. Type an ordered pair.)B. There are infinitely many solutions. The general solution is y), where y is any real number.OC. There is no solution.