A six-faced unbiased die is thrown until a number greater than 4 appears. The probability that this occurs on the $n$-th throw, where $n$ is an even integer, is

• A

  $\frac{1}{5}$
• B

  $\frac{1}{2}$
• C

  $\frac{2}{3}$
• Correct answer
  D

  $\frac{2}{5}$

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