Use Descartes' Rule of Signs to Determine the Possible Number

Multiple Choice

Use Descartes' Rule of Signs to determine the possible number of positive and negative zeros of .

A) 3 positive reals or 1 positive real; no negative reals
B) 1 positive real; 3 negative reals or 1 negative real
C) 3 positive reals or 1 positive real; 3 negative reals or 1 negative real
D) no positive reals; no negative reals
E) 0 positive real; 3 negative reals or 1 negative real