After a city council election, officials are examining votes. They discover that too many votes were cast for a candidate; some citizens voted 10 to 12 times for the same candidate in order to help that candidate win the election. What kind of illegal voting obstacle was used by the group of citizens who voted more than once? Why would they use it?

Electoral fraud : To rig the election

Explanation:

Electoral fraud are the different illegal actions taken by miscreants in interfering with the voting process illegally.

Electoral fraud is usually aimed at rigging and by making their preferred candidate win at all cost in the election through coercion, vote buying, violence and hacking into computerized systems in charge of the vote collation.

is this an essay or multiple choice