Which would be the most likely set of values (km/h) identified by two-point boundary value analysis?

A speed control and reporting system has the following characteristics: If you drive 50 km/h or less, nothing will happen. If you drive faster than 50 km/h, but 55 km/h or less, you will be warned. If you drive faster than 55 km/h but not more than 60 km/h, you will be fined. If you drive faster than 60 km/h, your driving license will be suspended.

  • A. 0, 49, 50, 54, 59, 60.
  • B. 50, 55, 60.
  • C. 49, 50, 54, 55, 60, 62.
  • D. 50, 51, 55, 56, 60, 61.

Answer: Option D