It cannot be concluded that the new additive did not cause the extended life of the cut flowers, and this inference can only be applied to the carnations from the greenhouse.
B
It can be concluded that the new additive caused the extended life of the cut flowers, and this inference can only be applied to the carnations from the greenhouse.
C
It can be concluded that the new additive did not cause the extended life of the cut flowers, and this inference can be applied to all carnations.
D
It can be concluded that the new additive caused the extended life of the cut flowers, and this inference can be applied to all carnations.