Table: Income Distribution in Four Countries Provides Recent Data from the World

Table: Income Distribution in Four Countries provides recent data from the World Bank on the distribution of income in four countries.
Based on the data, the country with the distribution of income that is closest to equal is:
$$\begin{array}{l}\text { Table: Income Distribution in Four Countries }\\\begin{array} { | l | l | l | l | l | } \hline & \text { Bangladesh } & \text { El Salvador } & \text { Mexico } & \text { Costa Rica } \\\hline \begin{array} { l } \text { Percent income top } \\\text { quintile }\end{array} & 41.4 \% & 46.4 \% & 50.1 \% & 54.0 \% \\\hline \begin{array} { l } \text { Percent income } \\\text { middle three quintiles } \\\text { combined }\end{array} & 50.0 \% & 47.7 \% & 44.2 \% & 41.8 \% \\\hline \begin{array} { l } \text { Percent income } \\\text { bottom quintile }\end{array} & 8.6 \% & 5.9 \% & 5.7 \% & 4.2 \% \\\hline\end{array}\end{array}$$

A) Bangladesh.
B) El Salvador.
C) Mexico.
D) Costa Rica.