Find Only the Rational Zeros $$f ( x ) = x ^ { 5 } - 5 x ^ { 4 } + 5 x ^ { 3 } + 15 x ^ { 2 } - 36 x + 20$$

Multiple Choice

Find only the rational zeros.
- $$f ( x ) = x ^ { 5 } - 5 x ^ { 4 } + 5 x ^ { 3 } + 15 x ^ { 2 } - 36 x + 20$$

A) $- 1,2 , - 2$
B) $1,2,3$
C) $1,2 , - 2$
D) No rational zeros