The eccentricity of the hyperbola whose length of the latus rectum is equal to 8 and the length of its conjugate axis is equal to half of the distance between its foci, is :

Question

( A ) $\frac{2}{\sqrt{3}}$
( B ) $\sqrt{3}$
( C ) $\frac{4}{3}$
( D ) $\frac{4}{\sqrt{3}}$