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A rectangle \(ABCD\) must be constructed on the \(xy\)-plane so that the side \(AB\) is parallel to the \(y\) axis. If the \(x\) and \(y\) coordinates of \(A, B, C,\) and \(D\) are integers between \(-3\) and \(6,\) inclusively, how many different rectangles can be constructed that satisfy these properties?
A. 81
B. 100
C. 2,025
D. 10,000
E. 12,100
Answer: C
Source: Economist
A. 81
B. 100
C. 2,025
D. 10,000
E. 12,100
Answer: C
Source: Economist
