A rectangle has a length of [tex]x^{3} y^{4}[/tex] and a width of [tex]xy^{7}[/tex] inches. Which expression represents the ratio of the length of the rectangle to the width of the rectangle?
A. [tex]\frac{x^{2} }{y^{3} }[/tex]
B. [tex]\frac{x^{3} }{y^{3} }[/tex]
C. [tex]\frac{y^{3} }{x^{3} }[/tex]
D.[tex]\frac{y^{3} }{x^{2} }[/tex]