\textbf{99- Which of the following best describes the function of the underlined sentence in paragraph 2?}
\begin{enumerate}
\item[1)] It describes a situation where the condition mentioned in the previous sentence cannot be met.
\item[2)] It provides the definition of a word mentioned in the previous sentence.
\item[3)] It provides a solution to a problem described in the previous sentence.
\item[4)] It draws a conclusion from the previous sentence.
\end{enumerate}