Final answer:
Option D contains an appositive phrase, with "the team captain" serving as additional information about "Lucy".
Step-by-step explanation:
The phrase "checks and balances" refers to the systematic structure within the American government that ensures no single branch becomes too powerful. However, your question seems to be asking about an appositive phrase within the context of grammar. An appositive is a noun or noun phrase that renames or clarifies another noun right beside it. Among the options provided, option D contains an appositive: Lucy, the team captain, decided on the navy uniform for Saturday's game. Here, "the team captain" is the appositive, giving more information about Lucy.An appositive is a word or phrase that adds explanatory or clarifying information to the noun that precedes it. Based on this definition, the sentence that contains an appositive phrase is Option D: Lucy, the team captain, decided on the navy uniform for Saturday's game.