Use Descartes's Rule of Signs to Determine the Possible Number $$f ( x ) = x ^ { 5 } - 3.2 x ^ { 4 } - 19.58 x ^ { 3 } + 3 x ^ { 2 } + 49.21 x - 13.538$$

Multiple Choice

Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given
function.
- $$f ( x ) = x ^ { 5 } - 3.2 x ^ { 4 } - 19.58 x ^ { 3 } + 3 x ^ { 2 } + 49.21 x - 13.538$$

A) 3 or 1 positive zeros, 2 or 0 negative zeros
B) 2 or 0 positive zeros, 2 or 0 negative zeros
C) 3 or 1 positive zeros, 3 or 1 negative zeros
D) 2 or 0 positive zeros, 3 or 1 negative zeros