What is the main way a representative democracy differs from a direct democracy?
citizens elect leaders who vote on the issues in a representative democracy, and citizens vote on the issues in a direct
democracy.
a representative democracy is modern, and a direct democracy is ancient.
a representative democracy works better in small groups, and a direct democracy works better in large groups.
citizens' desires are ignored in a representative democracy, and citizens' desires have a better chance of being heard in a
direct democracy.

Citizens elect leaders who vote on the issues in a representative democracy, and citizens vote on the issues in a direct democracy.

Explanation:

This is true, while the rest are false. Representative democracy was designed for large groups, not small, and direct democracies are designed for small, not large groups. The last option is wrong because the reason citizens elect their representative is so they can represent their desires and needs. And as for the 2nd option that representative democracy is modern and direct democracy is ancient, that just isn't a valid reason.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories