f$($n$)=4$n$2+5$n $+6.$ Which choices for c and n$0$ are sufficient to prove that f is O$($n$2)?$

Group of answer choices

c$=5$ and n$0=3$

c$=3$ and n$0=2$

c$=15$ and n$0=1$

c$=9$ and n$0=1$