Problem

Let g(x)={x2+5x+6x+3for x3kfor x=3g(x)=\begin{cases} \dfrac{x^2+5x+6}{x+3}&\text{for }x\neq -3 \\\\ k&\text{for }x=-3 \end{cases}
g is continuous for all real numbers.
What is the value of k?
Please choose from one of the following options.