One of the earliest and most enduring descriptions of managerial roles comes from ?

One of the earliest and the most enduring descriptions of managerial roles comes from?

One of the earliest and the most enduring descriptions of managerial roles comes from?

Peter Drucker as a business thinker and contributor in corporates 

A is the correct answer

regards

option (a) seems to be correct answer

Excuse me I don`t know .

 .. Thank you ..

Thank you for your invitation. Option A-  Mr. Adam Smith was the first one of the earliest and most enduring descriptions of the managerial roles in the world.

thanks for the invite and I agree with other's answers as option A

Thanks for the invite ............................i think a

I believe the answer is option (A)

________Thanks for the invite my answer B___________.