Match the function ((a), (b), (c)) to its sketch (one of (D), (E), (F), (G)).
(a) 3 x 2 + x 3 3 + 2 x 3 {\displaystyle {\frac {3x^{2}+x^{3}}{3+2x^{3}}}} ,
(b) x 3 3 + 2 x 3 {\displaystyle {\frac {x^{3}}{3+2x^{3}}}}
(c) x 3 + x 4 1 + 2 x 5 {\displaystyle {\frac {x^{3}+x^{4}}{1+2x^{5}}}}