Question:
Choose your answer: Is "Groove cuts in the vertical plane were employed rather than the usual lateral cuts." a good answer to the question "What could be avoided by using vertical groove cuts?"
Answer:
no

Question:
Choose your answer: Is "In particular, Calvin rejected luxury." a good answer to the question "What did Calvin particular reject?"
Answer:
yes

Question:
Choose your answer: Is "By 2007, 200 billion CDs had been sold worldwide." a good answer to the question "How many CDs had been distrubuted worldwide by 2007?"
Answer:
yes