Which of the following is the graph of f(x) = x2 − 6x + 5?

a
graph of a quadratic function with a minimum at 2, negative 9 and x intercepts at negative 1 and 5

b
graph of a quadratic function with a minimum at 3, negative 4 and x intercepts at 1 and 5

c
graph of a quadratic function with a minimum at 2.5, negative 2.4 and x intercepts at 1 and 4

d
graph of a quadratic function with a minimum at negative 1.5, negative 6.2 and x intercepts at 1 and negative 4