You are considering involving users during test execution. In general, what is the main reason for involving users during test execution? 1 credit

You are considering involving users during test execution. In general, what is the main reason for involving users during test execution? 1 credit
A . They are a cheap resource
B . They have good testing skills
C . This can serve as a way to build their confidence in the system
D . They have the ability to also focus on invalid test cases

Answer: C