${\displaystyle \underset{n=1}{\overset{}{}}}\frac{3^{n-1}{x}^{2n-1}}{4n-1}$ serisinin yak$$nsakl$$k aral$$ a$$a$$dakilerden hangisidir?

A$)-\frac{1}{\sqrt[\phantom{2}]{3}}x<mfrac><mrow><mn>1</mn></mrow><mrow><mroot><mrow><mn>3</mn><mspace\; width="thinmathspace"></mspace></mrow><mrow><mphantom><mn>2</mn></mphantom></mrow></mroot></mrow></mfrac>$

B$)-\frac{1}{3}x\frac{1}{3}-\frac{1}{\sqrt[\phantom{2}]{3}}x\frac{1}{\sqrt[\phantom{2}]{3}}-\frac{1}{\sqrt[\phantom{2}]{3}}$

$E-\frac{1}{3}$

$C$