I want to know the answer to the following question:
What was the longest-lived Macintosh in Apple's history while it was in production?
All the background I'm provided with is that "The Mac Plus was an immediate success and remained in production, unchanged, until October 15, 1990; on sale for just over four years and ten months, it was the longest-lived Macintosh in Apple's history.". Is that enough to answer the question?
Answer: yes