Assume that ${\left(\lim \right)}_{\theta \vec{1}}f\left(\theta \right)$ exists and $\frac{{\theta }^2+\theta -2}{\theta +3}\le \frac{f\left(\theta \right)}{{\theta }^2}\le \frac{{\theta }^2+2\theta -1}{\theta +3}$ holds for certain interval containing the point $\theta =-1$ then ${\left(\lim \right)}_{\theta \overrightarrow{-}1}f\left(\theta \right)$ is equal to $f\left(-1\right)$ b. is equal to 1 c. is non-existent d. is equal to -1

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