A thermometer measures temperature in whole degrees only. If the temperature falls below
18 degrees, the heating is switched off. It is switched on again when the temperature reaches 21
degrees. What are the best values in degrees to cover all equivalence partitions?
A. 15,19 and 25.
B. 17,18 and19.
C. 18, 20 and22.
D. 16, 26 and 32.
18 degrees, the heating is switched off. It is switched on again when the temperature reaches 21
degrees. What are the best values in degrees to cover all equivalence partitions?
A. 15,19 and 25.
B. 17,18 and19.
C. 18, 20 and22.
D. 16, 26 and 32.