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If x and y are consecutive integers and x < y, then y^2 - x^2 must be
A. A prime number.
B. An odd number.
C. An even number.
D. The square of an integer.
E. (y-x)^2
The OA is B
If x and y are consecutive integers and x < y, then y^2 - x^2 must be
A. A prime number.
B. An odd number.
C. An even number.
D. The square of an integer.
E. (y-x)^2
The OA is B
