SDLC (Software Development Life Cycle) Quizzes SDLC

Question:
Nullity of the software can be calculated by:

Option A):
Nullity = e + n  k
Option B):
Nullity = e + n + k
Option C):
Nullity = e - n  k
Option D):
Nullity = e - n + k

Correct Answer is Option D):
Nullity = e - n + k