If x + y + z = 19, xy + yz + zx = 114, then the value of \(\sqrt {{{\rm{x}}^3}{\rm{\;}} + {\rm{\;}}{{\rm{y}}^3}{\rm{\;}} + {\rm{\;}}{{\rm{z}}^3} - 3{\rm{xyz}}} \) is:

• A. 21
• B. 13
• C. 17
• D. 19