Final answer:
In a Texas primary, the winning candidate must secure a B) majority, meaning more than 50 percent of the votes. If there is no majority, a runoff election between the top candidates is conducted.
Step-by-step explanation:
The correct answer to the question is B) Majority.
In the context of a Texas primary, a majority win means that the winning candidate must receive more than 50 percent of the total primary votes. If no candidate achieves this threshold, it leads to a runoff election between the top two candidates to ensure the winning candidate secures a majority of the votes. This differs from a plurality, where the candidate with the most votes wins, regardless of whether they have more than half of the total votes cast. Proportional representation and supermajority are other forms of election rules, but they are not applicable in this scenario.