Which sentence structure consists of two or more independent clauses and one or more dependent clauses?

The option referring to a compound-complex sentence accurately identifies a structure that contains two or more independent clauses and at least one dependent clause. This type of sentence combines the features of both compound sentences, which connect multiple independent clauses, and complex sentences, which include dependent clauses. By doing so, it allows for more nuanced expression in writing, integrating multiple ideas and relationships within a single sentence.

In contrast, a complex sentence has only one independent clause and one or more dependent clauses. A simple sentence consists of just one independent clause, while a compound sentence contains two or more independent clauses only, without any dependent clauses. Therefore, the defining characteristics of a compound-complex sentence make it the correct choice, as it embodies the complexity of joining multiple independent clauses with dependent clauses in a cohesive manner.