Solve the system by elimination. If the system is inconsistent or has dependent equations, say so. 5 x plus 5 y equals 21 x plus y equals 3 Question content area bottom Part 1 Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice. A. The system has a single solution. The solution set is StartSet nothing EndSet . (Type an ordered pair. Type integers or simplified fractions.) B. There are infinitely many solutions and the equations are dependent. The solution set is StartSet left parenthesis x,y right parenthesis | 5 x plus 5 y equals 21 EndSet. C. The system is inconsistent. The solution set is the empty set