TMUA Specimen · Paper 2 · Question 14

The graph of the polynomial function

y = a x^{5} + b x^{4} + c x^{3} + d x^{2} + e x + f,

is sketched, where $a, b, c, d, e,$ and $f$ are real constants with $a \neq = 0$ .

Which one of the following is not possible?