[Q]: Wilder and his colleagues are cautious about their results also because the data do not make clear whether it was the anesthesia that contributed to the children's learning deficits, or whether it was an underlying condition that may have required surgery and precipitated the learning problems. Of the more than 5,000 babies studied, 593 needed at least one surgery and just over 100 infants needed more than two before age 3. There may be something unusual about this population of children that could have made them vulnerable to learning problems and required they undergo surgery and anesthesia. Wilder cannot assume causation because of correlation
[A]: Yes

[Q]: Mr. Speaker, an internal audit done in 1997 by Consulting and Audit Canada has confirmed what the Bloc Quebecois' analysis clearly showed- political pressure was brought to bear on the administrative staff of Human Resources Development Canada in order to speed up the grant approval process. The grant approval process wasn't able to speed up because of the political pressure.
[A]: It's impossible to say

[Q]: "Dark Knight Court" is the sixteenth episode of the 24th season of "The Simpsons" and the 524th episode overall. It originally aired on the Fox network in the United States on March 17, 2013. The episode is dedicated to Janet and Maggy Reno's brother, Robert Reno, who died of Alzheimer's disease. "Dark Knight Court" is an episode of "The Simpsons" written prior to 2013.
[A]: No

[Q]: The planet probably got this name due to its red color; Mars is sometimes referred to as 'the Red Planet'. a greek philosopher named mars
[A]:
It's impossible to say