Does the sentence "Area air defence, the air defence of a specific area or location, (as opposed to point defence), have historically been operated by both armies (Anti-Aircraft Command in the British Army, for instance) and Air Forces (the United States Air Force's CIM-10 Bomarc)." provide a valid answer to the question "What range do area defence systems have?"

A: no

Does the sentence "The PS3 lacked the unique gameplay of the more affordable Wii which became that generation's most successful console in terms of units sold." provide a valid answer to the question "What was PlayStation 3's toughest competitor in the video game market?"

A: yes

Does the sentence "The team did not have enough time before release to rework Link's character model, so they instead flipped the entire gameeverything was made a mirror image.[s]" provide a valid answer to the question "What did early users find hard to use about the game?"

A: no

Does the sentence "The early development of solar technologies starting in the 1860s was driven by an expectation that coal would soon become scarce." provide a valid answer to the question "What slowed the development of solar technologies in the early 20th century?"

A:
no