Which of the following is a step in simplifying the expression x multiplied by y to the power of 3 over x to the power of negative 4 multiplied by y to the power of 4, the whole to the power of negative 2.? a- x to the power of negative 2 multiplied by y to the power of negative 6, the whole over x to the power of 8 multiplied by y to the power of negative 8. b- x to the power of negative 2 multiplied by y, the whole over x to the power of negative 6 multiplied by y to the power of 2. c- x to the power of negative 2 multiplied by y to the power of negative 6, the whole over x to the power of negative 4 multiplied by y to the power of 4. d- x to the power of negative 2 multiplied by y, the whole over x to the power of negative 4 multiplied by y to the power of 4.