Column I contains rational algebraic expressions and Column II contains possible integers which ...

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Column I contains rational algebraic expressions and Column II contains possible integers which lie in their range. Match the entries of Column I with one or more entries of the elements of Column II.
\begin{tabular}{c|c|c|c}
\hline \multicolumn{2}{c|}{ Column I } & \multicolumn{2}{|c}{ Column II } \\
\hline (A) & \( y=\frac{x^{2}-2 x+4}{x^{2}+2 x+4}, x \in R \) & (p) & \( -2 \) \\
\hline (B) & \( y=\frac{2 x^{2}+4 x+1}{x^{2}+4 x+2}, x \in R \) & (q) & \( -1 \) \\
\hline (C) & \( y=\frac{x^{2}-3 x+4}{x-3}, x \in R \) & (r) & 2 \\
\hline & & (s) & 3 \\
\hline & & (t) & 8 \\
\hline
\end{tabular}
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