Each of the following is a quality management tool or technique except?

Quality function deployment, checksheet, and cause and effect diagram are quality management tools and techniques. Quality function deployment translates customer needs into engineering requirements. A checksheet is a structured method of collecting quantitative data about a process's results. A cause and effect diagram can show the relationship between a problem and its likely causes. The diagram shows relationships among the factors that can affect the variability of a process. “Quality Management” for a complete discussion.

the correct answer is Quality function deployment 

The answer is C.................

C -  Variance  analsis ..................................................

C..............................................Variance analysis

Agree with mr.Emad

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---------- c.  Variance analysis

Option A                            .

I think the anser it's A .