What Is the Rate of Defects for an Organisation Operating

What is the rate of defects for an organisation operating at the Six Sigma level?

A) Zero defects per million (100% of products and services meet quality standards or specifications)
B) 2 defects per million (99.9998% of products and services meet quality standards or specifications)
C) 3.4 defects per million (99.9997% of products and services meet quality standards or specifications)
D) 5.4 defects per million (99.99946% of products and services meet quality standards or specifications)
E) 900 defects per million (99.91% of products and services meet quality standards or specifications)