If P(x) is a polynomial with P(-6)=1.12 and P(-5)=0.6 then which of the following must be true: a. There is a zero for P(x) between x=-6 and x=-5, but it may be a complex number b. There is a zero for P(x) between x=-6 and x=-5 c. There is a zero for P(x) between x=-1.12 and x=0.6, but it may be a complex number d. There is a zero for P(x) between x=-1.12 and x=0.6 Please help. Thank you.