What is the factored form of the following expression?
d2 – 14d + 45
A(d + 9)(d + 5)
B(d + 9)(d – 5)
C(d – 9)(d + 5)
D(d – 9)(d – 5)
d2 – 14d + 45
A(d + 9)(d + 5)
B(d + 9)(d – 5)
C(d – 9)(d + 5)
D(d – 9)(d – 5)