Which of the following is a complex sentence?

Correct Answer: C

Rationale: A complex sentence has one independent clause and at least one dependent clause connected by a subordinating conjunction or a relative pronoun. In choice C, the sentence 'Because the distance between stars in the galaxy is far greater than the distance between planets' is a dependent clause introduced by the subordinating conjunction 'Because,' while the rest of the sentence 'interstellar travel is expected to be an even bigger challenge than interplanetary exploration' forms the independent clause. This combination of an independent clause and a dependent clause makes choice C a complex sentence. Choices A, B, and D do not contain both an independent and dependent clause connected in the way that choice C does, thus they do not qualify as complex sentences.

Correct Answer: A

Rationale: The prefix 'pre-' typically means before. In this case, 'preoperative' refers to activities that occur before an operation. Therefore, the patient's preoperative evaluation, scheduled for next Wednesday, will take place before the operation. Choices B, C, and D are incorrect because the prefix 'pre-' specifically indicates a time before the operation, not after, during, or outside of it.

Correct Answer: A

Rationale: The root word 'corp' is related to the body as it comes from the Latin word 'corpus,' meaning body. Words like 'corporal' and 'corporation' are derived from this root, linking them to the body in some manner. Choices B, C, and D are incorrect. 'Auto' relates to self or automatic, 'man' pertains to human or hand, and 'bio' is associated with life or living organisms, none of which directly signify the body.

Correct Answer: B

Rationale: In this context, 'traditional' is used to describe the characteristic of a comic book that follows long-established conventions. The word 'conventional' is the most appropriate synonym because it implies something that follows standard or established practices. 'Old-fashioned' suggests something outdated, which is not the intended meaning here. 'Expensive' and 'popular' do not relate to the context of how comic books are released and do not align with the meaning of 'traditional' in this specific context.

Correct Answer: B

Rationale: The correct answer is B: 'dollars.' 'Bucks' is a slang term for dollars. The use of 'bucks' in this sentence is informal and colloquial compared to the other word choices, making it the slang word in the sentence. 'Cost,' 'steep,' and 'tag' are all standard English words that are not considered slang in this context.