If the lengths of the transverse axis and the latus rectum of a hyperbola are $6$ and $\frac{8}{3}$ respectively, then, the equation of the hyperbola is ________

• A

  $4x^2-9y^2=72$
• Correct answer
  B

  $4x^2-9y^2=36$
• C

  $9x^2-4y^2=72$
• D

  $9x^2-4y^2=36$

Hence, the correct answer is option: 'B'.