Final answer:
Texas legislative seats are most often filled through general elections, where citizens vote for their representatives, although temporary appointments can be made when vacancies occur, until a special election is held. The correct answer is C.
Step-by-step explanation:
In the United States, legislative elections are typically conducted publicly, with citizens voting for candidates or political parties to represent them. When vacancies occur, the 17th Amendment of the U.S. Constitution allows state legislatures to enable governors to make temporary appointments until a special election is held.
In Texas, as in most states, the general rule is that these seats are filled through general elections, with all eligible voters having the opportunity to participate in the electoral process. Therefore the correct answer is C.