All the roots of polynomial z^{6}-10 z^{5}+A z^{4}+B z^{3}+C z^{2}+D z+16 are positive integers, possibly repeated. What is the value of B ?

**Answer Choices**

A. -88

B. -80

C. -64

D. -41

E. -40

All the roots of polynomial z^{6}-10 z^{5}+A z^{4}+B z^{3}+C z^{2}+D z+16 are positive integers, possibly repeated. What is the value of B ?

**Answer Choices**

A. -88

B. -80

C. -64

D. -41

E. -40