The correct answer is option 2: 3%.
To be considered a regional party, a party needs to secure a minimum percentage of votes in any election. In this case, the minimum percentage required is 3%. This means that if a party receives less than 3% of the total votes in an election, they will not be considered a regional party.
It is important for a party to secure a significant percentage of votes in order to be recognized as a regional party, as this shows that they have sufficient support and influence within a specific region. This recognition allows the party to focus on regional issues and cater to the needs and interests of the people in that particular area.