Final answer:
The type of primary election where voters can decide at the voting booth which party's primary they wish to participate in is called an Open Primary. This system allows more voter flexibility as choice of party can be made on Election Day.
Step-by-step explanation:
In the context of the election process, a primary election in which voters may decide when they enter the voting booths which party's primary they wish to participate in is called an Open Primary. This type of primary allows voters to select which party's primary they wish to participate in on the day of the election, although they can only vote in one party's primary. The purpose of an open primary is to allow more flexibility for voters, enabling them to make their choice on Election Day, not prior to it. On the contrary, a Closed Primary only allows registered party members to vote in the party's primary election. Meanwhile, a Blanket Primary allows voters to participate in all parties' primary elections by casting their vote on one ballot. Lastly, a Run-off Primary is typically implemented when no clear winner emerges from the initial primary.
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