Which of the following statements describe why experience-based test design techniques are useful?
a) They can help derive test cases based on analysis of specification documents.
b) They can identify tests not easily captured by formal techniques.
c) They make good use of tester knowledge, intuition and experience.
d) They are an effective alternative to formal test design techniques.
A . a and b.
B . b and d
C . c and d
D . b and c.