Question:
Choose your answer: Is "Although Bach did not use equal temperament, as a modern piano is generally tuned, changes in the temperaments from the meantone system, common at the time, to various temperaments that made modulation between all keys musically acceptable, made possible Bach's Well-Tempered Clavier." a good answer to the question "What system of temperaments was common during Bach's time?"
Answer:
yes

Question:
Choose your answer: Is "There are several reasons an otherwise valid and agreed upon treaty may be rejected as a binding international agreement, most of which involve problems created at the formation of the treaty.[citation needed]" a good answer to the question "An otherwise valid and agreed upon treaty may be rejected as what for several reasons most of which involve problems created at the formation of a treaty?"
Answer:
yes

Question:
Choose your answer: Is "YouTube now operates as one of Google's subsidiaries." a good answer to the question "How does youtube now operate as a business?"
Answer:
yes