Which of the following is an example of passive voice?

"On the other hand" signals contrast and helps connect ideas smoothly. The other options are adverbs describing manner or time, not transitions.

A simple sentence contains only one independent clause with a subject and predicate. Option B is a straightforward sentence with one subject, "Quantum physics," and one verb phrase, "is Juan's best subject," making it a simple sentence.

Option B correctly capitalizes "New York," a proper noun, and uses lowercase for "Western town," as "western" here is an adjective, not part of a proper noun. The other options improperly capitalize common nouns like "At," "College," and "Geography," which should not be capitalized unless part of a formal title.

A dangling modifier is a descriptive phrase that doesn't clearly and logically refer to a word in the sentence. In option B, "that needed paint" appears to describe the garage instead of the truck, making it a misplaced or dangling modifier that causes confusion about what needs paint.

Coordinating conjunctions connect words, phrases, or independent clauses of equal importance. "But" is a coordinating conjunction that introduces contrast between two ideas. In this sentence, it links the preference to read with the occasional action of playing with the cat.

Option D provides a broad overview and sets the stage for a detailed discussion, which is typical of an introductory sentence. The other options are more specific and suit body paragraphs rather than introductions.

All pairs are homophones—they sound alike but have different meanings and spellings.

The introductory phrase "After reading the book" incorrectly modifies "the movie," which cannot read. The correct sentence should clarify who read the book.

The word "her's" is incorrect; the correct possessive pronoun is "hers" without an apostrophe. The other uses of commas and apostrophes are appropriate.

A complex sentence contains an independent and at least one dependent clause, as in option B.