State How Many Complex and Real Zeros the Function Has $$f ( x ) = x ^ { 3 } - 15 x ^ { 2 } + 75 x - 125$$

Multiple Choice

State how many complex and real zeros the function has.
- $$f ( x ) = x ^ { 3 } - 15 x ^ { 2 } + 75 x - 125$$

A) 3 complex zeros; 1 real
B) 3 complex zeros; none real
C) 3 complex zeros; all 3 real
D) 3 complex zeros; 2 real