Final answer:
Voter registration allows governments to confirm voter eligibility, track voters, prevent fraud, and clean up elections, but can also pose barriers to certain groups.
Explanation:
Voter registration serves the purpose of allowing governments to determine which citizens are eligible to vote and which party nominees they can select. It helps track voters, prevents fraud, and cleans up elections. However, the process can also act as a barrier to certain groups participating in the electoral process, such as less educated individuals and lower socioeconomic classes.
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