Use Descartes's Rule of Signs to Determine the Possible Numbers $5 x ^ { 5 } - 10 x$

Multiple Choice

Use Descartes's Rule of Signs to determine the possible numbers of positive and neg- ative zeros of the function. $5 x ^ { 5 } - 10 x$

A) One positive zero, one negative zero
B) Two negative zeros or no positive zero
C) One negative zero
D) One negative zero, four negative zeros
E) One negative zero or three positive zeros