Let's analyze the data provided in the table to determine which nation can expect to experience the most social issues. The table gives the percentages of social issues for the countries listed:
\begin{tabular}{|r|c|}
\hline
Angola & [tex]$2.784 \%$[/tex] \\
\hline
Iraq & [tex]$2.345 \%$[/tex] \\
\hline
United Kingdom & [tex]$0.553 \%$[/tex] \\
\hline
United States & [tex]$0.9 \%$[/tex] \\
\hline
\end{tabular}
Now, let's compare the percentages one by one:
1. Angola: [tex]$2.784 \%$[/tex]
2. Iraq: [tex]$2.345 \%$[/tex]
3. United Kingdom: [tex]$0.553 \%$[/tex]
4. United States: [tex]$0.9 \%$[/tex]
Among these percentages, [tex]$2.784 \%$[/tex] is the highest value.
Therefore, the nation that can expect to experience the most social issues of a developing country, based on the given data, is:
Angola