Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
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Question: Question: Persistence and perseverance seem to have very similar definitions. Googling shows persistence: Firm or obstinate continuance in a course of action in spite of difficulty or opposition. perseverance: Steadfastness in doing something despite difficulty or delay in achieving success. What is the difference between them? 
Answer: "Persistence" is used in the sense of "stubborn" (obstinate). There could be a slight negative connotation. For example: The telemarketers persistently called us. We don't say they "perseverantly" called us. "Persistent" is used when there continuing action, and the purpose is either bad, or neutral, and sometimes(rarely) good. "Perseverance", is used when the purpose is good. That is, you're doing something to help someone, or to achieve a desirable goal, such as climbing Mt. Everest. Depending on how you feel on something, you could use "perseverance"/"Persistence". For example, the telemarketer calling you, could annoy you, and you could call him "obstinately persistent". But to the marketer, you might be to him, a tough customer, and he might seem to himself "bravely perseverant in trying to persuade this tough customer." As you can see, it gives a different "feel" about the thing described.

Answer: yes


Question: Question: A simple question that has sparked some debate, and I couldn't find a concrete answer anywhere. There seems to be two camps: The word plethora indicates plural, so therefore it should be "There are a plethora"; and the other camp says that there is only one plethora (which contains multiple), so it should be "There is a plethora". I've seen many examples of both. Is there a consensus, or is it just one of those things that can go either way? 
Answer: A plethora is singular, so one must say "there is a plethora of..." just as one would say "there is a bunch..." If you are dealing in several plethoras, you could use the plural: "there are plethoras of..." but this feels very contrived and artificial.

Answer: yes


Question: Question: My wife is always accusing me of casting aspersions and I'd like to do something else with them. Please advise. 
Answer: You can also sprinkle them. [aspersion: (n) An attack on somebody's reputation or good name, often in the phrase to cast aspersions upon (Dict.com)] (label) ...a sprinkling of [aspersions] Merriam-Webster: "sprinkle" def: scatter or pour small drops or particles of a substance over (an object or surface). Maybe a sprinkling of aspersions will make them appear more tiny vs. this casting aspersions upon her. Perhaps a sprinkling of aspersions sounds less inoffensive; somewhat harmless, or innocuous--somehow. Seem like a piddling of aspersions. Maybe because there's less of them. I don't know. Sometimes, if I apply a sprinkling of aspersions on my wife instead of casting, she thinks them funny. Try a sprinkling of aspersions instead. If that doesn't work, you can always go back to casting aspersions upon her, or even try dusting or powdering her with aspersions. See if that works. Good luck!.

Answer:
yes