This question tests vocabulary understanding, specifically synonyms. 'Stop' and 'halt' are both verbs that mean to cease movement or action. They can be used interchangeably in many contexts. Option A is incorrect because they have similar meanings, not opposite. Option C is incorrect because they are indeed related in meaning. Option D is incorrect because both can function as both verbs and nouns. * **Core Concept:** Synonym identification * **Solution:** The correct answer is B because 'stop' and 'halt' share a similar meaning. Option A, C, and D are factually incorrect in this context. * **Detailed Analysis:** * **A:** Antonyms have opposite meanings, which is not the case for 'stop' and 'halt'. * **B:** This is the correct choice. Both words indicate a cessation of movement or action. * **C:** 'Stop' and 'halt' are closely related in meaning; thus this choice is invalid. * **D:** Both 'stop' and 'halt' can function as nouns and verbs. * **Common Mistake:** Choosing option A or C if vocabulary knowledge is weak, or choosing D if not paying attention to the parts of speech.