Who presented the Concept of Quality?

Appreciate your invitation 

It is D..................

Regards 

d. Prof.Edward Deming

Thank you for the invitation

 i hope the answer is D

regards

d. Prof.Edward Deming

Thanks.

My answer is for option (D)

option D

Thanks for invitation

option "(d) is the correct answer

Plan , do , check , Act without doubt  Prof.Edward Deming

Correct option is ::  d. Prof.Edward Deming

Thanks for the invitation. Sorry, I have no knowledge about it.

b. Prof.Henry Mintzberg....................