What is a closed primary, and how does it differ from an open primary?

What is a closed primary, and how does it differ from an open primary?

• A. Closed primaries restrict voting to registered party members; open primaries allow any registered voter to participate in a party's primary.
• B. Closed primaries allow any voter; open primaries restricts to party members.
• C. Closed primaries occur in even-numbered years; open primaries occur in odd-numbered years.
• D. Closed primaries use only party-approved candidates; open primaries allow write-ins.

Answer: (A)