We know from the triangle inequality that the last side, $s$, fulfills $s+3\textgreater4$. Therefore, $P\textgreater4+4$. The least integer value of $P$ is $9$ 
For $\triangle ABC$, all its side lengths are integers. The primeter of $\triangle ABC$ with a side of length $3$ and a side length of $4$ is at least ． 
Options:
* $$7$$ 
* $$8$$ 
* $$9$$ 
* $$12$$ 