下面文献的文献标识符[C]表示的含义是: [3] Rongjian Li, Wenlu Zhang, Heung-Il Suk,等. Deep Learning Based Imaging Data Completion for Improved Brain Disease Diagnosis[C]// International Conference on Medical Image Computing and Computer-Assisted Intervention. 2014.
【单选题】If the number of baseball games in a city and the amount of violent crime is positively correlated, why is it not safe to conclude that baseball games cause violent crime?
A.
Baseball is seasonal, whereas violent crime happens all the time.
B.
That conclusion would be generally unpopular.
C.
Playing baseball actually causes a reduction in violent crime.
D.
A third variable could be causing the increase in both.