Outcome of Democracy

In the context of democracies which of the
following ideas is correct. Democracies have
successfully eliminated :

In the context of assessing democracy which
among the following is odd one out.
Democracies need to ensure:

Why is democracy considered as the better
form of government than dictatorship.

What do democracies ensure regarding
decision making ?

The basic outcome of democracy is;

Measures of sustain democracy are (i) Unity in diversity
(ii) Peaceful co-existence
(iii) International peace and understanding
(iv) Lack of tolerance power