Three numbers are chosen from 1 to 30. The probability that they are not three consecutive numbers is

• A

  $\frac{1}{145}$
• B

  $\frac{142}{145}$
• C

  $\frac{143}{145}$
• Correct answer
  D

  $\frac{144}{145}$

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