A nonfunctional requirement _____________.

A.
specifies what the system should do

B.
is a detail that happens to be true but has not been tested or verified

C.
specifies how the system should behave

D.
is an attribute that can prevent a project from being completed

Explanation:

A functional requirement states something the system should do (for example, the system
shouldprocess transactions). A nonfunctional requirement states how the system should behave
(for example, thesystem should update its performance metrics every 5 seconds). An assumption
is a detail that happens to betrue but has not been tested or verified is an assumption, and a risk is
an attribute that can prevent ta projectfrom being completed.